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Sigma (/ˈsɪɡmə/ SIG-mə; uppercase Σ, lowercase σ, lowercase in word-final position ς; Greek: σίγμα) is the eighteenth letter of the Greek alphabet. When...

Six Sigma (6σ) is a set of techniques and tools for process improvement. It was introduced by American engineer Bill Smith while working at Motorola in...

Sigma Sigma Sigma (ΣΣΣ), also known as Tri Sigma, is a national American women's sorority. It was established in 1898 at what is now Longwood University...

Phi Sigma Sigma (ΦΣΣ), colloquially known as Phi Sig, was the first collegiate nonsectarian sorority to allow membership of women of all faiths and backgrounds...

sigma, Sigma, Σ, σ, or ς in Wiktionary, the free dictionary. Sigma (Σ or σ, word-final lowercase ς) is the 18th letter of the Greek alphabet. Sigma may...

sigma _{j},\sigma _{k}\right]+\{\sigma _{j},\sigma _{k}\}&=(\sigma _{j}\sigma _{k}-\sigma _{k}\sigma _{j})+(\sigma _{j}\sigma _{k}+\sigma _{k}\sigma...

Sigma 6 may refer to: G.I. Joe: Sigma 6, a line of military-themed action figures and toys SDS Sigma 6, one of the SDS Sigma series of computers made by...

Sigma Chi (ΣΧ) is one of the largest North American social fraternities. The fraternity has 244 active undergraduate chapters and 152 alumni chapters...

Sigma-Aldrich (part of MilliporeSigma) is a brand operating within an American chemical, life science, and biotechnology company owned by the multinational...

"Sigma Boy" (Russian: "Сигма Бой") is a song by Russian bloggers and singers Betsy and Maria Iankovskaia, released as a single by the record label Rhymes...

In physics, a sigma model is a field theory that describes the field as a point particle confined to move on a fixed manifold. This manifold can be taken...

Delta–sigma (ΔΣ; or sigma–delta, ΣΔ) modulation is an oversampling method for encoding signals into low bit depth digital signals at a very high sample-frequency...

represented in mathematical texts and equations by the lowercase Greek letter σ (sigma). In the case of a normal distribution (as typified by the symmetrical bell-shaped...

Sigma Piscium (Sigma Psc, σ Piscium, σ Psc) is a binary star in the zodiac constellation of Pisces. It has an apparent magnitude of +5.50, meaning it is...

{\textstyle \sigma ^{2}} is the variance. The standard deviation of the distribution is the positive value ⁠ σ {\displaystyle \sigma } ⁠ (sigma). A random...

Sigma Persei (Sigma Per, σ Persei, σ Per) is an orange K-type giant star with an apparent magnitude of +4.36. It is approximately 343 light-years from...

Sigma Sigma (ΣΣ) is a men's upperclassmen honorary fraternity at the University of Cincinnati. Founded in 1898, it is the oldest of such organizations...

In probability theory, a sigma-martingale is a semimartingale with an integral representation. Sigma-martingales were introduced by C.S. Chou and M. Emery...

Sigma Pi Phi (ΣΠΦ), also known as The Boulé, is an African American professional fraternity. Founded in Philadelphia, Pennsylvania, in 1904, it is the...

Sigma Mu Sigma (ΣΜΣ) is a former American college fraternity founded in 1921 at Trine University, formerly Tri-State University. Sigma Mu Sigma was historically...

Lean Six Sigma is a process improvement method that uses a collaborative team effort to improve performance by systematically removing operational waste...

Sigma Centauri is a solitary star in the southern constellation of Centaurus. Its name is a Bayer designation that is Latinized from σ Centauri, and abbreviated...

Two Sigma Investments, LP is an American hedge fund headquartered in New York City. It uses a variety of technological methods, including artificial intelligence...

-1\sigma \leq X\leq \mu +1\sigma )&\approx 68.27\%\\\Pr(\mu -2\sigma \leq X\leq \mu +2\sigma )&\approx 95.45\%\\\Pr(\mu -3\sigma \leq X\leq \mu +3\sigma...

SK Sigma Olomouc is a Czech professional football club based in the city of Olomouc. The club currently competes in the Czech First League, the first...

have expanded the Greek-letter hierarchy to include related terms such as "sigma male," used to describe a solitary but high-status "lone wolf" who exists...

The SIGMA 155 is a 155mm self-propelled howitzer manufactured by the Israeli defense company Elbit Systems being introduced into service in the Israel...

new SIGMA designs released in early 2015 these are the: SIGMA 8313 SIGMA 8011 SIGMA 7613 SIGMA 6610 They are likely to be part of the Compact SIGMA series...

Sigma Sigma Phi (ΣΣΦ or SSP), is an American osteopathic medicine honors fraternity for medical students training to be Doctors of Osteopathic Medicine...

mathematics, particularly measure theory, a 𝜎-ideal, or sigma ideal, of a σ-algebra (𝜎, read "sigma") is a subset with certain desirable closure properties...

Sigma Xi, The Scientific Research Honor Society (ΣΞ) (/ˈsɪɡmə/ /zaɪ/ ) is an international non-profit honor society for scientists and engineers. Sigma...

Sigma Nu (ΣΝ) is an undergraduate college fraternity founded at the Virginia Military Institute in 1869. Since its founding, Sigma Nu has chartered more...

Sigma heat, denoted S {\displaystyle S} , is a measure of the specific energy of humid air. It is used in the field of mining engineering for calculations...

The Sigma is an experimental glider developed in Britain from 1966 by a team led by Nicholas Goodhart. After disappointing performance during flight testing...

mathematics, a nonempty collection of sets is called a 𝜎-ring (pronounced sigma-ring) if it is closed under countable union and relative complementation...

Sigma Guitars is a guitar manufacturing brand originally released by C.F. Martin & Company as a line of guitars at affordable prices to compete with the...

Sigma Octantis is a solitary star in the Octans constellation that forms the pole star of the Southern Hemisphere. Its name is also written as σ Octantis...

siramesine. There are two subtypes, sigma-1 receptors (σ1) and sigma-2 receptors (σ2), which are classified as sigma receptors for their pharmacological...

Sigma Sigma Rho (ΣΣΡ) is a South Asian interest collegiate sorority in the United States. It was established at St. John's University in 1998. It is a...

Retrieved 2009-07-23. "Gamma Sigma Sigma - Service". Gamma Sigma Sigma. "Gamma Sigma Sigma - Our Organization". Gamma Sigma Sigma. Benton Harbor News Palladium...

Wikimedia Commons has media related to Mitsubishi Sigma. Mitsubishi Sigma is a model name that was used by the Japanese automobile manufacturer Mitsubishi...

Delta Sigma Theta Sorority, Inc. (ΔΣΘ) is a historically African American sorority. The organization was founded by college-educated women dedicated to...

Sigma 7 may refer to: the callsign of the spacecraft used in the 1962 Mercury-Atlas 8 mission the SDS Sigma 7 computer, made by Scientific Data Systems...

Sigma Boötis, also named Genghe, is a single, yellow-hued star in the northern constellation of Boötes. This star is visible to the naked eye with an...

16-bit Sigma 2 and the 32-bit Sigma 7; the Sigma 7 was the first 32-bit computer released by SDS. At the time, the only competition for the Sigma 7 in the...

In mathematical analysis and in probability theory, a σ-algebra ("sigma algebra") is part of the formalism for defining sets that can be measured. In...

Sigma Autosport was a CART Champ Car racing team that competed in 2001 and 2002. It was owned by former Toyota Atlantic driver Tom Wieringa. Sigma competed...

Sigma Arietis is a star in the northern constellation of Aries. Its name is a Bayer designation that is Latinized from σ Arietis, and abbreviated Sigma...

Sigma Pi Sigma (ΣΠΣ) is an American honor society for physics and astronomy. It was founded at Davidson College in Davidson, North Carolina on December...

Ontario Premier League, as Sigma FC. Over 140 Sigma players have gone on to play NCAA or U Sports soccer on scholarships. Sigma was formed in 2005 by Constantine...

Mu Sigma is an American data analytics firm providing big data services, decision sciences and helping enterprises in data-driven decision making. The...

Sigma Aurigae is a star in the northern constellation of Auriga. Its name is a Bayer designation that is Latinized from σ Aurigae, and abbreviated Sigma...

Sigma Healthcare Limited is an Australian, ASX-listed company with a focus on the pharmacy industry. The company has pharmacy operations in retail, wholesale...

Sigma Phi Sigma (ΣΦΣ) is an American professional and service coed fraternity for college students studying to be funeral service practitioners. Sigma...

Sigma are an English drum and bass DJ and record production duo consisting of Cameron James Edwards and Joseph Aluin Lenzie. They met at Leeds University...

In chemistry, sigma bonds (σ bonds) or sigma overlap are the strongest type of covalent chemical bond. They are formed by head-on overlapping between atomic...

Sigma Draconis is a single star in the northern constellation of Draco. It has the proper name Alsafi /ælˈseɪfi/, while Sigma Draconis, which is latinised...

eyes. He describes himself as the leader of the Recyclons from the planet Sigma IX, and claims to be over 5,900 years old. Binface named his second-in-command...

Sigma Phi Sigma (ΣΦΣ) was an American national collegiate fraternity founded in 1908 at the University of Pennsylvania. It ceased operations during WWII...

{\ln x-\mu }{\sigma }}\right)}{\frac {1}{\sigma x}}\\[6pt]&={\frac {1}{x\sigma {\sqrt {2\pi }}}}\exp \left(-{\frac {(\ln x-\mu )^{2}}{2\sigma ^{2}}}\right)~...

Kappa Sigma (ΚΣ), commonly known as Kappa Sig or KSig, is an American collegiate social fraternity founded at the University of Virginia in 1869. Kappa...

Mu Sigma Upsilon Sorority, Incorporated (ΜΣΥ) is an American multicultural intercollegiate sorority. It was founded in 1981 at Rutgers University–New...

that year and by Hermann Weyl in 1928: σ x σ p ≥ ℏ 2 {\displaystyle \sigma _{x}\sigma _{p}\geq {\frac {\hbar }{2}}} where ℏ = h 2 π {\displaystyle \hbar...

Sigma Corporation (株式会社シグマ, Kabushiki-gaisha Shiguma) is a Japanese company, manufacturing cameras, lenses, flashes and other photographic accessories...

Sigma is the alias of Siebren de Kuiper, a character who first appeared in a 2019 update for the video game Overwatch, a Blizzard Entertainment–developed...

Sigma Alpha may refer to Sigma Alpha (fraternity), a social fraternity Sigma Alpha (professional sorority), an agricultural professional sorority This...

Sigma Alimentos, S.A. de C.V., also known as Sigma or Sigma Alimentos, is a Mexican multinational food processing and distribution company headquartered...

The Sigma fp is a 24.6-megapixel full-frame mirrorless interchangeable-lens camera made by Sigma. It was publicly announced in July 2019 (2019-07) and...

Sigma Derby is an electro-mechanical horse race used for gambling manufactured by Japanese manufacturer Sigma Game Inc. and introduced in 1985. Up to...

Sigma Pi Sigma is an American honor society for physics and astronomy. It was founded at Davidson College in Davidson, North Carolina on December 11, 1921...

A sigma factor (σ factor or specificity factor) is a protein needed for initiation of transcription in bacteria. It is a bacterial transcription initiation...

Sigma Designs, Inc., was an American public corporation that designed and built high-performance system-on-a-chip semiconductor technologies for Internet-based...

The Chrysler Sigma is a version of the Mitsubishi Galant automobile that was built by Chrysler Australia in Adelaide, South Australia from 1977. When...

  σ ( 6 ) = 1 {\displaystyle \sigma (1)=2,\ \ \sigma (2)=6,\ \ \sigma (3)=5,\ \ \sigma (4)=4,\ \ \sigma (5)=3,\ \ \sigma (6)=1} can be written as σ = (...

Sigma Oasis is the fifteenth studio album by the American rock band Phish, released on the band's JEMP Records label on April 2, 2020. The album was recorded...

Boa sigma, known commonly as the Mexican west coast boa constrictor or Bateman’s Boa, is a species of snake in the family Boidae. The species is endemic...

The Sigma SA-mount is a lens mount by the Sigma Corporation of Japan for use on their autofocus single-lens reflex and mirrorless cameras. It was introduced...

Sigma, officially the Municipality of Sigma (Capiznon/Hiligaynon: Banwa sang Sigma; Tagalog: Bayan ng Sigma), is a municipality in the province of Capiz...

launched the Sigma with the Sigma 7 and Sigma 10 models, with the Sigma 7 being a single door model and the Sigma 10 being a dual door model. The Sigma 7 debuted...

The Sigma Delta Chi Awards are presented annually by the Society of Professional Journalists (SPJ) (formerly Sigma Delta Chi) for excellence in journalism...

Sigma TV is a commercial network in Cyprus that began broadcasting on April 3, 1995. It is a private service and is currently the channel in Cyprus with...

Sigma Pi (ΣΠ) is a collegiate fraternity in North America. As of 2021, it had more than 5,000 undergraduate members and over 118,000 alumni. The fraternity...

Sigma Films is a film production company based in Glasgow, Scotland. The company was formed in 1996 by Gillian Berrie, David Mackenzie and Alastair Mackenzie...

Phi Beta Sigma Fraternity, Inc. (ΦΒΣ) is a historically African American fraternity. It was founded at Howard University in Washington, D.C. in 1914....

Sigma mount may refer to: Sigma SA-mount (SA), an auto-focus SLR camera mount with inner (SA-IB) and outer (SA-OB) bayonets introduced by Sigma in 1992...

Sigma Alpha Epsilon (ΣΑΕ) is a North American Greek-letter social college fraternity. It was founded at the University of Alabama in Tuscaloosa, Alabama...

Sigma Sigma Sigma sorority has 98 active chapters. Following is a list of Sigma Sigma Sigma chapters. Active chapters noted in bold, inactive chapters...

Sigma Cygni, Latinised from σ Cygni, is a blue supergiant star in the constellation Cygnus. Its apparent magnitude is 4.2. It belongs to the Cygnus OB4...

English drum and bass duo Sigma have released four studio albums, nine extended plays and 48 singles. The duo signed to 3 Beat Records in the summer of...

chemistry, sigma-bond metathesis is a chemical reaction wherein a metal-ligand sigma bond undergoes metathesis (exchange of parts) with the sigma bond in...

The Sigma DP1x is a large sensor digital compact camera announced by Sigma Corporation on February 20, 2010. List of large sensor fixed-lens cameras http://www...

Sigma Scorpii (or σ Scorpii, abbreviated Sigma Sco or σ Sco), is a multiple star system in the constellation of Scorpius, located near the red supergiant...

Sigma Pi Phi, also known as The Boulé, is an African American professional fraternity. Founded in Philadelphia, Pennsylvania, in 1904, it is the oldest...

Sigma Editions is an independent record label founded in 1998 by Rosy Parlane and Dion Workman (both ex-members of Thela). It specializes in electronic...

The Sigma Rho Fraternity (ΣΡ) is a College of Law-based fraternity in the University of the Philippines Diliman. Having been formally organized in 1938...

Beta Sigma (βΣ) is a collegiate fraternity based in the Philippines. It was founded in 1946 at the University of the Philippines in Manila. It is one...

Sigma Sigma Phi is an American osteopathic medicine honors fraternity for students training to be Doctors of Osteopathic Medicine. It was founded in 1921...

Sigma Tau Sigma (ΣΤΣ) is a local honorary fraternity for textiles. It was established in 1929 at North Carolina State University in Raleigh, North Carolina...

mathematics, by sigma function one can mean one of the following: The sum-of-divisors function σa(n), an arithmetic function Weierstrass sigma function, related...

Sigma Sound Studios was an American independent recording studio in Philadelphia, Pennsylvania, founded in 1968 by recording engineer Joseph Tarsia. Located...

Sigma Kappa (ΣΚ, also known as SK or Sig Kap) is a North American college sorority. It was founded in 1874 at Colby College in Waterville, Maine. The...

Sigma Gamma Rho Sorority, Inc. (ΣΓΡ) is a historically African American sorority. The sorority was founded on November 12, 1922. The organization was...

space ( X , F ) {\displaystyle (X,{\mathcal {F}})} , a σ {\displaystyle \sigma } -finite subset is a measurable subset which is the union of a countable...

also ways to generalize the use of many sigma notations. For example, one writes double summation as two sigma notations with different dummy variables...

Sigma Virus may refer to: Sigmaviruses, a clade of viruses in the family Rhabdoviridae that infect dipterans. The Sigma Virus from the Mega Man X video...

Tau Sigma (ΤΣ) is an American honor society for university transfer students. It was established at Auburn University in 1999 and has spread to include...

electrons in a sigma bond. Transition metal silane complexes are often especially stable sigma complexes. A particularly common subset of sigma complexes are...

Sigma AB offers its services through the business areas Sigma Technology, Sigma Connectivity, Sigma Industry and Sigma Software, within which Sigma AB...

Gamma Sigma Sigma is a national service sorority founded by the merger of eight local sororities on October 12, 1952, at Beekman Tower in New York City...

Sigma is an American cloud-based analytics and business intelligence company. Sigma was founded in 2014 by Jason Frantz and Rob Woollen. Sigma was founded...

Theta Sigma Phi (ΘΣΦ) was an American honor society and professional fraternity for women in journalism. It was established in 1909 at the University...

In mathematics, σ-approximation adjusts a Fourier summation to greatly reduce the Gibbs phenomenon, which would otherwise occur at discontinuities. An...

The Sigma Protocol is the name of a novel. Sigma Protocol may also refer to: Sigma protocols, a type of cryptographic protocol. This disambiguation page...

Alpha Sigma Delta may refer to: Alpha Sigma Delta fraternity, a men's social fraternity at Miller-Motte College. Alpha Sigma Delta fraternity, a defunct...

The sigma coordinate system is a common coordinate system used in computational models for oceanography, meteorology and other fields where fluid dynamics...

Phi Sigma Alpha (ΦΣΑ), commonly known as La Sigma, is a Puerto Rican fraternity originally established as the Sigma Delta Alpha Fraternity (Sociedad de...

Ninja Gaiden Sigma, with graphical improvement and gameplay changes; this was released on the portable PlayStation Vita as Ninja Gaiden Sigma Plus. Ninja...

especially in probability theory and ergodic theory, the invariant sigma-algebra is a sigma-algebra formed by sets which are invariant under a group action...

Sigma Sigma Omicron (ΣΣΟ), also known as Sigma Phi Beta (ΣΦΒ), was an American college sorority. It was established at New York University in New York...

Compass merged with Sigma Mu Sigma (ΣΜΣ), originally another Masonic fraternity, resulting in a new organization called Sigma Mu Sigma–Square and Compass...

The sigma-2 receptor (σ2R) is a sigma receptor subtype that has attracted attention due to its involvement in diseases such as neurological diseases,...

_{1}^{2}&\sigma _{12}&\sigma _{13}&\cdots \\\sigma _{21}&\sigma _{2}^{2}&\sigma _{23}&\cdots \\\sigma _{31}&\sigma _{32}&\sigma _{3}^{2}&\cdots...

responsible for bone turnover. Historically, this was referred to as the sigma (σ) or sigma period, but that terminology is outdated. Although bone may appear...

The Sigma Phi Society (ΣΦ) is an American college fraternity. Established in 1827 at Union College in Schenectady, New York, it was the second Greek letter...

The Korg Sigma KP-30 is a monophonic analog synthesizer released by Korg in 1979. The Sigma was designed for organ players and live performance, featuring...

Ferrari Sigma, also known as the Ferrari Sigma Grand Prix or Pininfarina Sigma, was a Formula One show car built in 1969 by Pininfarina. The Sigma, unveiled...

Sigma (Japanese: シグマ, Hepburn: Shiguma) is a fictional character and the main antagonist of the Mega Man X video game series. Created by Dr. Cain, Sigma...

The Sigma SD15 is an updated version of Sigma SD14 DSLR produced by the Sigma Corporation of Japan and featuring the improved TRUE II image processing...

Sigma Tauri (σ Tauri) is a visual double star in the zodiac constellation of Taurus. Its two physically unrelated components are: σ1 Tauri σ2 Tauri The...

The Sigma DP1 was a high-end compact digital camera introduced by the Sigma Corporation. It featured a 14-megapixel Foveon X3 sensor (2652 × 1768 × 3...

Delta Sigma may refer to: Delta Sigma fraternity, a secondary school fraternity founded in 1897 at Lewis Institute in Chicago, Illinois Delta Sigma (sorority)...

can be described as a sigma (Σ) turned sideways. It was used as an alternative to sigma to denote the sound /s/. Unlike sigma, whose position in the...

{3A}{\sigma _{X}\sigma _{Y}}}&0&0&-{\frac {1}{\sigma _{Y}}}&-{\frac {1}{\sigma _{X}}}\\0&{\frac {\sigma _{X}}{A\sigma _{Y}}}&0&0&0\\0&0&{\frac {\sigma _{Y}}{A\sigma...

Chi Upsilon Sigma (ΧΥΣ) ("Women of Wisdom")—official name is Corazones Unidos Siempre Chi Upsilon Sigma National Latin Sorority, Inc. (Hearts United Always)—is...

Sigma Omega is a 1979 board game published by Game Technology. Sigma Omega is a tactical game that simulates science fiction space combat. Forrest Johnson...

The list of Sigma Kappa members includes initiated members of Sigma Kappa sorority. Laura Deming (Theta Lambda) – 2011 Thiel Fellow and venture capitalist...

Delta Sigma Phi (ΔΣΦ), commonly known as Delta Sig, is a fraternity established in 1899 at The City College of New York (CCNY). It was the first fraternity...

Sigma Phi Epsilon (ΣΦΕ), commonly known as SigEp, is a social college fraternity for male college students in the United States. It was founded on November...

Sigma Terra Corps, Sigma TC, is a Swedish science fiction club, founded 5 December 1976 in Saltsjöbaden by Wolf von Witting, Jörg Litschke and Johan Richter...

Alpha Sigma Alpha (ΑΣΑ) is a United States National Panhellenic sorority founded on November 15, 1901, at the Virginia State Female Normal School (later...

Phi Sigma (ΦΣ) is an honor society for students of biological sciences, formed at Ohio State University. The Phi Sigma honor society was founded on March...

Ninja Gaiden Sigma 2, stylized as Ninja Gaiden Σ2, is a 2009 action-adventure game developed by Team Ninja and published by Tecmo Koei for the PlayStation...

G.I. Joe: Sigma 6 is a line of military-themed action figures and toys produced by Hasbro, re-imagining the characters of the 1980s toyline, G.I. Joe:...

In general topology, an Fσ set (pronounced F-sigma set) is a countable union of closed sets. The notation originated in French with F for fermé (French:...

The Sigma 50-500mm f/4-6.3 EX DG HSM is a super-telephoto zoom lens produced by Sigma Corporation. It contains four SLD (Special Low Dispersion) glass...

Sigma Alpha Mu (ΣΑΜ), commonly known as Sammy, is a college fraternity founded at the City College of New York in 1909. The fraternity was originally...

episodes. It is also referred to as "God Sigma, Empire of Space" and "Space Combination God Sigma". Space Emperor God Sigma was created by Toei's Television Division...

The sigma-1 receptor (σ1R), one of two sigma receptor subtypes, is a chaperone protein at the endoplasmic reticulum (ER) that modulates calcium signaling...

The Xerox Sigma 9, also known as the XDS Sigma 9, is a high-speed, general purpose computer. Xerox first became interested in office automation through...

Bloom's 2 sigma problem refers to the educational phenomenon that the average student tutored one-to-one using mastery learning techniques performed two...

Sigma level may refer to a: measurement of defects in the Six Sigma business management strategy atmospheric pressure measured in a sigma coordinate system...

Gruppo Sigma (Greek: Ομάδα Σίγμα) was a short-lived group of young Greek artists founded in 1958 in Italy. It is a prime example of the Greek artistic...

characteristic, was established at Union College in Schenectady, New York. In 1827, Sigma Phi and Delta Phi were also founded at the same institution, creating the...

The Sigma SD14 is a digital single-lens reflex camera produced by the Sigma Corporation of Japan. It is fitted with a Sigma SA mount which takes Sigma SA...

The Ford Sigma is a small straight four automobile engine introduced in 1995 by Ford Motor Company. Its first evolution was sold as the Zetec-S (not to...

Gamma Sigma Alpha (ΓΣΑ, or GSA) is an American academic Greek honor society recognizing academic excellence of members of fraternities and sororities...

Alpha Sigma Chi (ΑΣΧ) was a North American social fraternity that was founded in 1874 at Rutgers University. It established seven chapters before merging...

Sigma Psi (ΣΨ) was a local sorority founded at Western Reserve College in Cleveland, Ohio, on March 7, 1897. Sigma Psi was the oldest sorority on Case...

Pi Sigma Fraternity (ΠΣ) is a socio-political fraternity based in the University of the Philippines Diliman. It was established in 1972 and has expanded...

The Sigma DP2x is a large-sensor digital compact camera announced by Sigma Corporation on February 8, 2011. It features a Foveon X3 sensor. List of large...

Sigma Harmonics is a 2008 role-playing video game co-developed by Square Enix and Think Garage, and published by Square Enix for the Nintendo DS. An expanded...

Design for Six Sigma (DFSS) is a collection of best-practices for the development of new products and processes. It is sometimes deployed as an engineering...

{\displaystyle k\sigma } is at most 1 / k 2 {\displaystyle 1/k^{2}} , where k {\displaystyle k} is any positive constant and σ {\displaystyle \sigma } is the...

The Optare Sigma was a step-entrance single-deck bus body manufactured by Optare between 1994 and 1996 on the Dennis Lance chassis. Launched in April...

This is a list of notable alumni of the Sigma Chi fraternity. Many Sigma Chi Brothers have been awarded the Significant Sig Award by headquarters, indicated...

Phi Sigma Phi (ΦΣΦ) (Phi Sig) is a national fraternity in the United States founded on July 30, 1988 in South Bend, Indiana by chapters formerly of Phi...

The Sweethearts of Sigma, sometimes known simply as The Sweethearts or The Sweeties, were an American female vocal trio comprising Carla Benson, Evette...

Phi Sigma Kappa (ΦΣΚ), colloquially known as Phi Sig or PSK, is a men's social and academic fraternity with approximately 74 active chapters and provisional...

sigma _{1}+\sigma _{2}+\sigma _{3}\\I_{2}&=\sigma _{1}\sigma _{2}+\sigma _{2}\sigma _{3}+\sigma _{3}\sigma _{1}\\I_{3}&=\sigma _{1}\sigma _{2}\sigma...

Austroaeschna sigma is a species of large dragonfly in the family Aeshnidae, known as the sigma darner. It inhabits the upper reaches of small mountain...

The Sigma Society is a secret senior society at Washington and Lee University in Lexington, Virginia. Founded around 1880, it is the oldest society in...

In chemistry, sigma hole interactions (or σ-hole interactions) are a family of intermolecular forces that can occur between several classes of molecules...

_{11})^{2}+6(\sigma _{12}^{2}+\sigma _{23}^{2}+\sigma _{31}^{2}\right)}{2}}}\\&={\sqrt {\frac {(\sigma _{1}-\sigma _{2})^{2}+(\sigma _{2}-\sigma _{3})^{2}+(\sigma _{3}-\sigma...

{\displaystyle H=\sum _{k,\sigma }\epsilon _{k}c_{k\sigma }^{\dagger }c_{k\sigma }+\sum _{\sigma }\epsilon _{\sigma }d_{\sigma }^{\dagger }d_{\sigma }+Ud_{\uparrow...

{i} &=-\sigma _{2}\sigma _{3}=-i\sigma _{1}\\\mathbf {j} &=-\sigma _{3}\sigma _{1}=-i\sigma _{2}\\\mathbf {k} &=-\sigma _{1}\sigma _{2}=-i\sigma _{3}\end{aligned}}}...

Space City Sigma is an Indian science fiction television series that aired on the DD National channel in the late 1980s. Along with Indradhanush, it was...

Sigma Alpha International (ΕΣΑ) is an International community and collegiate coeducational service organization. Established in 1929, Epsilon Sigma Alpha...

− μ σ ) = γ . {\displaystyle \Pr {\left({\frac {L-\mu }{\sigma }}<Z<{\frac {U-\mu }{\sigma }}\right)}=\gamma .} By determining the quantile z such that...

Alpha Sigma Phi (ΑΣΦ), commonly known as A Sig, is an intercollegiate men's social fraternity. Founded in 1845 at Yale University in New Haven, Connecticut...

Sigma Sports is a UK-based retail company that sells bicycles and triathlon equipment. The company was founded by Ian Whittingham and Jason Turner in...

Tau Gamma Sigma (ΤΓΣ) also known as the Triskelions' Grand Sorority, is a sorority established in the Philippines. Its members call themselves Lady Triskelions...

_{Y}\end{pmatrix}},\quad {\boldsymbol {\Sigma }}={\begin{pmatrix}\sigma _{X}^{2}&\rho \sigma _{X}\sigma _{Y}\\\rho \sigma _{X}\sigma _{Y}&\sigma _{Y}^{2}\end{pmatrix}}...

Sigma Star Saga is a 2005 hybrid action role-playing shoot 'em up developed by WayForward and published by Namco Hometek for the Game Boy Advance. The...

The Sigma Protocol is the last novel written completely by Robert Ludlum, and was published posthumously. It is the story of the son of a Holocaust survivor...

={\frac {\sigma _{m}}{\sigma _{eq}}}={\frac {{\frac {1}{3}}(\sigma _{1}+\sigma _{2}+\sigma _{3})}{\sqrt {\frac {(\sigma _{1}-\sigma _{2})^{2}+(\sigma _{2}-\sigma...

The Bayer designation σ Gruis (Sigma Gruis) refers to 2 distinct star systems in the constellation Grus: σ1 Gruis σ2 Gruis This set index article includes...

{\begin{aligned}\sigma ^{*}=f(\sigma ^{*})&\Rightarrow \sigma _{i}^{*}=f_{i}(\sigma ^{*})\\&\Rightarrow \sigma _{i}^{*}={\frac {g_{i}(\sigma ^{*})}{\sum _{a\in...

Phi Kappa Sigma (ΦΚΣ), also known as Phi Kap, Skulls, Skullhouse, or PKS, is an international all-male college secret society and social fraternity. Commonly...

Mu Sigma Rho (ΜΣΡ) is an American national honor society for statistics. It was established at Iowa State University in 1968. Mu Sigma Rho was founded...

The Bayer designation Sigma Cancri (σ Cnc / σ Cancri) is shared by three star systems, in the constellation Cancer: σ1 Cancri, which has the Flamsteed...

Sigma Seven, Inc. (株式会社シグマ・セブン, Kabushiki-gaisha Shiguma Sebun) is a Japanese talent management firm representing a fair number of voice actors and entertainers...

Sigma Delta Tau (ΣΔΤ) is an American sorority and member of the National Panhellenic Conference. Sigma Delta Tau was founded on March 25, 1917, at Cornell...

guided-missile corvettes of the Indonesian Navy are SIGMA 9113 types of the Netherlands-designed Sigma family of modular naval vessels, named after Indonesian...

sigma ^{2}+\sigma ^{4}\\&={\frac {(n-1)^{2}}{a^{2}}}\operatorname {E} \left[S_{n-1}^{4}\right]-2\left({\frac {n-1}{a}}\right)\sigma ^{4}+\sigma ^{4}&&\operatorname...

}={\begin{pmatrix}0&\sigma ^{\mu }\\{\overline {\sigma }}^{\mu }&0\end{pmatrix}},\quad \sigma ^{\mu }\equiv (1,\sigma ^{i}),\quad {\overline {\sigma }}^{\mu }\equiv...

Sigma Iota (ΣΙ) was the second Latin American–based Greek lettered inter-collegiate fraternity established in the United States. It began in 1903 as a...

Gamma Sigma Delta is a co-ed honor society for students of agriculture and the related sciences. Its first six chapters began as Delta Theta Sigma. Where...

The Sigma SD9 is a digital single-lens reflex camera (DSLR) produced by the Sigma Corporation of Japan. The camera was launched at the Photo Marketing...

_{1}&={-\left(r-q-{1 \over {2}}\sigma ^{2}\right)+{\sqrt {\left(r-q-{1 \over {2}}\sigma ^{2}\right)^{2}+2\sigma ^{2}r}} \over {\sigma ^{2}}}\\\lambda _{2}&={-\left(r-q-{1...

Sigma Orionis or Sigma Ori (σ Orionis, σ Ori) is a multiple star system in the constellation Orion, consisting of the brightest members of a young open...

Alpha Sigma Kappa – Women in Technical Studies (ΑΣΚ – WiTS) is a social sorority for women in the fields of mathematics, architecture, engineering, technology...

The Sigma DP2 is a high-end compact digital camera introduced by the Sigma Corporation. It features a 14-megapixel Foveon X3 sensor (2652 × 1768 × 3 layers)...

Sigma Ceti is a triple star system in the equatorial constellation of Cetus. Its name is a Bayer designation that is Latinized from σ Ceti, and abbreviated...

club Sigma Olomouc and progressed through the club's youth system. In April 2018, he played in the Vlastislav Mareček’s memorial tournament for Sigma Olomouc...

Others, such as Alpha Sigma, Beta Beta, Delta Sigma, Gamma Sigma, Epsilon Sigma, Omicron Sigma, Sigma Sigma, and Theta Sigma (Original) were chartered...

Beta Sigma Phi International (ΒΣΦ) is an international noncollegiate sorority. Founded in Abilene Kansas, in 1931 by Walter W. Ross "for the social, cultural...

Sigma Alpha Lambda (ΣΑΛ) is an American college leadership and honor society. It was founded in 2001 at the University of Arizona in Tucson, Arizona....

The Sigma SD1 is a digital SLR camera produced by the Sigma Corporation of Japan. The camera uses a Foveon X3 sensor, which comprises 3 layers of 4800...

variable with itself, and it is often represented by ⁠ σ 2 {\displaystyle \sigma ^{2}} ⁠, ⁠ s 2 {\displaystyle s^{2}} ⁠, ⁠ Var ⁡ ( X ) {\displaystyle \operatorname...

On 28 October 2002, a school shooting occurred at the Sigma School (Portuguese: Escola Sigma) in Salvador, capital of Bahia, Brazil. The perpetrator, a...

Iota Sigma Pi (ΙΣΠ) is a national honor society in the United States. It was established in 1900 and specializes in the promotion of women in the sciences...

The Upsilon Sigma Phi (ΥΣΦ) is the oldest Greek-letter organization and fraternity in Asia. Founded in 1918, it is also the oldest student organization...

Psi, Kappa Kappa Kappa, Phi Sigma Kappa, Sigma Nu, Sigma Alpha Epsilon, Chi Phi, Theta Delta Chi, Phi Gamma Delta, Sigma Chi, and Gamma Delta Chi. It...

The Order of Beta Sigma Epsilon (ΒΣΕ) is a Native American regional collegiate social fraternity. It was established in 2000 at the University of Arizona...

Sigma Lambda Upsilon (ΣΛΥ) or Señoritas Latinas Unidas Sorority, Inc. is a Latina-based sorority founded on December 1, 1987 at Binghamton University...

Sigma Hydrae (σ Hydrae, abbreviated Sigma Hya, σ Hya), also named Minchir /ˈmɪŋkər/, is a solitary star in the equatorial constellation of Hydra. It is...

Delta Sigma Theta's notable members United States portal Delta Sigma Theta List of Delta Sigma Theta national conventions List of Delta Sigma Theta alumnae...

Pi Sigma Gamma (ΠΣΓ) was an American collegiate social sorority. It was established in 1919 at the University of California, Berkeley and merged with...

e^{\beta h\sigma _{L}}e^{\beta J\sigma _{L}\sigma _{1}}=\sum _{\sigma _{1},\ldots ,\sigma _{L}}V_{\sigma _{1},\sigma _{2}}V_{\sigma _{2},\sigma _{3}}\cdots...

Sigma Sagittarii, Latinized from σ Sagittarii; formally named Nunki /ˈnʌŋki/, is the second-brightest star in the constellation of Sagittarius. It is...

Sigma Investments is a multinational company founded by Iman Mutlaq based in Amman, Jordan. It offers diversified investment opportunities and advisory...

Alpha Sigma Tau (known as ΑΣΤ or Alpha Tau) is an American collegiate sorority founded 1899, at Eastern Michigan University (formerly Michigan State Normal...

Sigma 75–300 mm f4-5.6 AF Sigma 85 mm f/1.4 EX DG HSM Sigma 100–200 mm f/4.5 Macro Sigma 100–300 mm f/4.5-6.7 DL Sigma 100–300 mm f/4 EX APO IF Sigma...

The Sigma SD10 is a digital single-lens reflex camera (DSLR) manufactured by the Sigma Corporation of Japan. It was announced on October 27, 2003, and...

The Sigma 30 is an inertial navigation system produced by SAGEM for use with artillery applications including howitzers, multiple rocket launchers, mortars...

national fraternities merged with Pi Lambda Phi: Phi Beta Delta, Beta Sigma Tau and Beta Sigma Rho. Phi Beta Delta was founded at Columbia University, April 4...

list of notable members of Phi Sigma Kappa men's collegiate fraternity, including those who were members of Phi Sigma Epsilon prior to the 1985 merger...

Sigma Delta Alpha (ΣΔΑ) is a Greek-lettered Latino-based fraternity established in spring 1992 at San José State University. The first interest group...

chapter at Saint Mary's School became a chapter of Alpha Sigma Alpha in. 1909. Gamma Beta Sigma's insignia included a skull and crossed bones, a skeleton...

Beta Phi Sigma (ΒΦΣ) was an American pharmacy fraternity. Beta Phi Sigma stands for Buffalo Pharmacy School. Beta Phi Sigma was the first Greek-letter...

Nu Sigma Beta Fraternity (ΝΣΒ) is a Puerto Rican fraternity. It was established in 1937 at the University of Puerto Rico by 10 students from diverse backgrounds...

Delta Sigma Chi (ΔΣΧ) is an American fraternal organization for professionals in the area of Chiropractic. In 1913, there were three chiropractic schools...

dormant digital camera image sensor designed by Foveon, Inc., (now part of Sigma Corporation) manufactured by Dongbu Electronics. It uses an array of photosites...

_{\sigma \in S_{n}}\chi _{\lambda }(\sigma )a_{1\sigma (1)}a_{2\sigma (2)}\cdots a_{n\sigma (n)}=\sum _{\sigma \in S_{n}}\chi _{\lambda }(\sigma )\prod...

Sigma Phi Lambda (ΣΦΛ), also known as Sisters for the Lord or Phi Lamb, is a Christian sorority founded in 1988 in Austin, Texas. Sigma Phi Lambda was...

Sigma platform is a mid-size automobile platform used by General Motors from the 2003 to 2015 model years. Exclusive to the Cadillac division, Sigma was...

The Hyundai Sigma engine is what Hyundai Motor Company called the Mitsubishi 6G7 engine when manufactured in South Korea. It is a series of V6 piston...

+ 2 p a p b {\displaystyle \sigma _{P_{w}}^{2}=\sigma _{P_{a}-P_{b}}^{2}=\sigma _{P_{a}}^{2}+\sigma _{P_{b}}^{2}-2\sigma _{P_{a},P_{b}}=p_{a}(1-p_{a}...

Sigma Theta Psi (ΣΘΨ) is a multicultural, academic, and social sorority. The sorority was founded at San Jose State University (SJSU) in 1991. The founding...

The Sigma Theta Tau International Honor Society of Nursing (ΣΘΤ) is the second-largest nursing organization in the world with approximately 135,000 active...

{\boldsymbol {\sigma }}\,=\,{\begin{bmatrix}\sigma _{11}&\sigma _{12}&\sigma _{13}\\\sigma _{21}&\sigma _{22}&\sigma _{23}\\\sigma _{31}&\sigma _{32}&\sigma _{33}\end{bmatrix}}}...

B_{n}=\left\langle \sigma _{1},\ldots ,\sigma _{n-1}\mid \sigma _{i}\sigma _{i+1}\sigma _{i}=\sigma _{i+1}\sigma _{i}\sigma _{i+1},\sigma _{i}\sigma _{j}=\sigma _{j}\sigma...

Phi Beta Sigma is a historically African American fraternity that was founded at Howard University in Washington, D.C. in 1914. The fraternity's membership...

Delta Theta Sigma (ΔΘΣ) is a social professional agricultural fraternity. It was created in 1906 at Ohio State University. There are currently seven active...

The Sigma DP2 Quattro is a large sensor digital compact camera announced by Sigma Corporation on February 13, 2014. It is the first Sigma camera to feature...

Sigma Zeta (ΣΖ) is a North American honor society founded in 1925 to recognize undergraduate excellence in the natural sciences, computer science, and...

Sigma Pi Phi is an African American professional fraternity. Founded in Philadelphia, Pennsylvania, in 1904, it is the oldest Greek lettered fraternity...

Anti-sigma factors are small proteins that bind to sigma factors and inhibit transcriptional activity in regulating prokaryote gene expression. Anti-sigma...

Phi Rho Sigma Society (ΦΡΣ) is a co-educational medical fraternity founded by medical students at Northwestern University in 1890. Phi Rho Sigma Medical...

Sigma Aquarii is a double star in the equatorial constellation of Aquarius, positioned about 1.3° to the south of the ecliptic. Its name is a Bayer designation...

American company Smith & Wesson introduced in 2010, replacing the SW / Sigma line. Smith & Wesson started manufacturing "SD VE" (VE for Value Enhanced)...

Histor–Sigma was a Belgian professional cycling team that existed from 1986 to 1991. In Japan, in the 1993-1994 TV series Gosei Sentai Dairanger, The...

Sigma Iota Epsilon (ΣΙΕ) is an American national honorary and professional management fraternity. The stated goals of Sigma Iota Epsilon are; To stimulate...

Team IG–Sigma Sport (UCI team code: IGS) was a British UCI continental cycling team. Team IG–Sigma Sport are sponsored by the IG Group, a financial derivatives...

Sigma Pi (ΣΠ) is one of the four male literary societies of Illinois College. It is the oldest literary society at Illinois College and one of the oldest...

The Elitar Sigma or Elitar (Samara VVV-Avia) Sigma is a single engine light aircraft of wing and boom layout, seating two in side-by-side configuration...

Jolla, California. Sigma Beta Delta was founded by Beta Gamma Sigma on January 16, 1994, in La Jolla, California. Beta Gamma Sigma, itself an honor society...

"A" Sigma 20mm f/1.4 DG HSM "A" Sigma 24mm f/1.4 DG HSM "A" Sigma 28mm f/1.4 DG HSM "A" Sigma 30mm f/1.4 EX DC HSM Sigma 30mm f/1.4 DC HSM "A" Sigma 35mm...

Mu Sigma Phi may refer to: Mu Sigma Phi (literary society), also known as the Clariosophic Society Mu Sigma Phi (medical fraternity) in the Philippines...

Greek letter Sigma (Σ) came to represent the voiceless alveolar sibilant /s/. While the letter shape Σ continues Phoenician šîn, its name sigma is taken from...

the rebellious Sigma from leading humanity to extinction and have the Mavericks rule the world. X's origins and his relationship with Sigma are further explored...

{\displaystyle {\begin{aligned}\sigma _{1}(n)&=\sigma _{1}(n-1)+\sigma _{1}(n-2)-\sigma _{1}(n-5)-\sigma _{1}(n-7)+\sigma _{1}(n-12)+\sigma _{1}(n-15)+\cdots \\[12mu]&=\sum...

The UP Alpha Sigma Fraternity (ΑΣ), also known as Alay Sa Sambayanan, or Masig, is a Filipino college fraternity. It was founded in 1962 at the University...

Sigma Beta Rho Fraternity, Inc. (ΣΒΡ, also SigRho) is an American collegiate and national multicultural fraternity. Founded in 1996, it was the first...

Sigma Sport is a German manufacturer of electronic sports equipment. Rox and Topline product lines of heart rate monitors, altimeters, and bike computers...

Sigma (stylized with the Greek symbol Σ) is the only studio album by Japanese musical unit REOL. It was released on October 19, 2016 by Toy's Factory...

The Society of Sigma Gamma Epsilon (ΣΓΕ) is a national honor society to recognize scholarship in the earth sciences founded in 1915 at the University...

Sigma Alpha Iota (ΣΑΙ) is an international music fraternity. It was established in 1903 at the University School of Music in Ann Arbor, Michigan. Sigma...

Sigma Librae is a star in the constellation of Libra. It has the proper name Brachium, Sigma Librae is its Bayer designation. The apparent visual magnitude...

Sigma Xi is an international scientific research honor society. In addition to collegiate chapters, the society maintains area and company-based chapters...

This novel introduces Sigma Force and a mysterious opposing group, the Guild, who appear in several of Rollins' future Sigma Force novels. The magi brought...

Alpha Sigma Nu (ΑΣΝ) is the honor society of Jesuit colleges and universities. Founded in 1915 at Marquette University as Alpha Sigma Tau, it adopted...

Sigma Phi Philippines, Inc. (ΑΣΦ, commonly known as Alphans) is a co-ed college service fraternity with 4 active undergraduate chapters. Alpha Sigma Phi...

(RNA polymerase, sigma S, also called katF) encodes the sigma factor sigma-38 (σ38, or RpoS), a 37.8 kD protein in Escherichia coli. Sigma factors are proteins...

Beta Sigma Rho (ΒΣΡ) was an American social fraternity founded at Cornell University in 1910. Most of its active chapters were absorbed into Pi Lambda...

gene rpoE (RNA polymerase, extracytoplasmic E) encodes the sigma factor sigma-24 (σ24, sigma E, or RpoE), a protein in Escherichia coli and other species...

Sigma Theta Epsilon (ΣΘΕ) was an American interdenominational national Christian fraternal organization that operated from 1941 to 2022. It had 47 chapters...

Sigma Alpha Kappa may refer to: Sigma Alpha Kappa, a defunct local men's fraternity at Loyola University New Orleans Sigma Alpha Kappa, a defunct local...

Alpha Gamma Sigma may refer to: Alpha Gamma Sigma (fraternity), a social and professional fraternity in agriculture in the US Alpha Gamma Sigma (honor society)...

Phi Eta Sigma (ΦΗΣ) is an American freshman honor society. Founded at the University of Illinois in 1923, it is the oldest and largest freshman honor...

{\displaystyle \sigma _{t}:={\sqrt {1-{\bar {\alpha }}_{t}}}} σ ~ t := σ t − 1 σ t β t {\displaystyle {\tilde {\sigma }}_{t}:={\frac {\sigma _{t-1}}{\sigma _{t}}}{\sqrt...

Sigma Omicron Pi (ΣΟΠ) is an Asian American interest sorority. Founded in 1930 at San Francisco State University, the college social organization has...

encodes the sigma factor sigma-54 (σ54, sigma N, or RpoN), a protein in Escherichia coli and other species of bacteria. RpoN antagonizes RpoS sigma factors...

Kappa Sigma is an American collegiate social fraternity founded at the University of Virginia in 1869. This is a list of some of the notable members of...

}}\quad y_{1}\leq \cdots \leq y_{n}} and every permutation σ {\displaystyle \sigma } of the numbers 1 , 2 , … n {\displaystyle 1,2,\ldots n} we have Informally...

Sigma Alpha Epsilon is a North American social college fraternity. It was founded at the University of Alabama in Tuscaloosa, Alabama, on March 9, 1856...

Sigma Thêta Pi (ΣΘΠ, STPi), is an international francophone student fraternity based in Canada and France. It was established in 2003 at Grenoble Alpes...

Psychoda sigma, the moth fly, is a species of moth fly in the family Psychodidae. "Psychoda sigma Report". Integrated Taxonomic Information System. Retrieved...

Sigma Motors Limited was founded in 1994 and is responsible for the marketing and assembly of Land Rover 4x4's in Pakistan. Sigma Motors uses idle capacity...

{\textstyle (x:\sigma )\to \tau =\prod _{x:\sigma }\tau } . Also referred to as dependent sum type, since ( x : σ ) × τ = ∑ x : σ τ {\textstyle (x:\sigma )\times...

Lambda Delta Sigma may refer to: Lambda Delta Sigma (Concordia), a sorority at Concordia College Lambda Delta Sigma (LDS Church), a sorority for members...

Pi Kappa Sigma (ΠΚΣ or Pi Kap) was an American national collegiate sorority. Established in 1894 at the Michigan State Normal School, it was the first...

Σ {\displaystyle \Sigma } be an oriented, closed, two-dimensional surface, and let N ε ( Σ ) {\displaystyle N_{\varepsilon }(\Sigma )} denote the set...

Eta Sigma Delta International Hospitality Management Society (ΗΣΔ or ESD) is an international honor society for hospitality students. The organization...

American social sorority Sigma Kappa. Sigma Delta was founded in May 1977 at Dartmouth College as the Zeta Lambda chapter of Sigma Kappa national sorority...

Alpha Sigma Rho (ΑΣΡ), also known as Alpha Sigs, ASR, and Lovely Ladies in Red, is an American Asian-interest, but not exclusive, social sorority founded...

, {\displaystyle f(x;\sigma )={\frac {x}{\sigma ^{2}}}e^{-x^{2}/(2\sigma ^{2})},\quad x\geq 0,} where σ {\displaystyle \sigma } is the scale parameter...

Lambda Sigma Upsilon Latino Fraternity, Inc. (ΛΣΥ) is an American intercollegiate Latino oriented Greek lettered fraternity. It was founded in 1979 at...

Phi Sigma Sigma is a collegiate nonsectarian sorority in North America. In the following list, active chapters are indicated in bold and inactive chapters...

the form ⁠ M = U Σ V ∗ {\displaystyle \mathbf {M} =\mathbf {U} \mathbf {\Sigma } \mathbf {V} ^{*}} ⁠, where ⁠ U {\displaystyle \mathbf {U} } ⁠ is an ⁠...

Eta Sigma Phi (ΗΣΦ) is an American collegiate honor society for the study of Classics. It was established in 1914 at the University of Chicago in Chicago...

streaming television with the series Secret Stories: Roslin and featured in the Sigma Paiyan music video. She went on to star in Youth (2026) , which emerged...

The Sigma DP1s is a high-end compact digital camera introduced by the Sigma Corporation as an improvement of the Sigma DP1. It features a 14-megapixel...

Sigma Eta Chi (ΣΗΧ) was an American collegiate sorority for Congregational women. It was established in 1923 at Ohio State University in Columbus, Ohio...

Alpha Pi Sigma Sorority Incorporated (ΑΠΣ) is a multicultural Latina-based sorority founded in 1990 at San Diego State University. It was created to bring...

Alpha Sigma Tau, Chi Omega, Delta Gamma, Gamma Phi Beta, Kappa Alpha Theta, Kappa Delta, Kappa Kappa Gamma, Phi Sigma Sigma, Sigma Sigma Sigma, and Theta...

Delta Sigma Lambda (ΔΣΛ) was a social fraternity founded on September 9, 1921, formed entirely of members of the Order of DeMolay. It continued for about...

{\displaystyle \sigma _{p}^{2}=w_{A}^{2}\sigma _{A}^{2}+w_{B}^{2}\sigma _{B}^{2}+w_{C}^{2}\sigma _{C}^{2}+2w_{A}w_{B}\sigma _{A}\sigma _{B}\rho _{AB}+2w_{A}w_{C}\sigma...

Sigma Lambda Beta International Fraternity, Incorporated (ΣΛΒ) is a multicultural fraternity with historically-Latino roots. It was founded in 1986 at...

Sigma Lambda Chi (ΣΛΧ) is an international scholastic honor society that recognizes academic achievement among students in the field of construction management...

Alpha Sigma Lambda (ΑΣΛ) is an American honor society for non-traditional students in colleges and universities. It was established at Northwestern University...

Theta Delta Sigma Society, Inc. (ΘΔΣ) is a national gender inclusive multicultural fraternal organization founded in 2001 at the University at Buffalo...

Pi Sigma Alpha (ΠΣΑ or PSA), the National Political Science Honor Society, is the only honor society for college and university students of political...

Sigma Serpentis, Latinized from σ Serpentis, is a star in the equatorial constellation Serpens. It is faintly visible to the naked eye with an apparent...

Sigma constant (σ constant) may refer to: Yamabe invariant, in mathematics A parameter of the Hammett equation in organic chemistry The constant of proportionality...

{\boldsymbol {\sigma }}=\left[{\begin{matrix}\sigma _{11}&\sigma _{12}&\sigma _{13}\\\sigma _{21}&\sigma _{22}&\sigma _{23}\\\sigma _{31}&\sigma _{32}&\sigma...

The Sigma war games were a series of classified high level war games played in the Pentagon during the 1960s to strategize the conduct of the burgeoning...

{\begin{aligned}\sigma ^{n}&=2\sigma ^{n-1}+\sigma ^{n-2}\\&=\sigma ^{n-1}+3\sigma ^{n-2}+\sigma ^{n-3}\\&=2\sigma ^{n-1}+2\sigma ^{n-3}+\sigma ^{n-4}\end{aligned}}}...

Sigma Pi Alpha Sorority, Inc. (ΣΠΑ) is a Chicana and Latina-based, Greek letter, intercollegiate sorority founded in 1996 at the University of California...

Sigma Sculptoris, Latinized from σ Sculptoris, is a binary star in the southern constellation of Sculptor. It is faintly visible to the naked eye with...

Cyclone Sigma was a deadly tropical cyclone that caused severe damage in North Queensland, Australia on 26–27 January 1896 and the loss of at least 23...

Phi Omega Sigma is a collegiate social and service fraternity/sorority in the Philippines. Phi Omega Sigma may also refer to: Phi Omega Sigma former fraternity...

Phi Sigma Nu (ΦΣΝ) is the oldest and largest Native American fraternity in the United States. It was founded in 1996 in North Carolina. Phi Sigma Nu is...

_{1})(X_{2}-\mu _{2})]}{\sigma (X_{1})\sigma (X_{2})}}&\cdots &{\frac {\operatorname {E} [(X_{1}-\mu _{1})(X_{n}-\mu _{n})]}{\sigma (X_{1})\sigma (X_{n})}}\\\\{\frac...

Sigma is a signature format based on pattern matching for system logging, to detect malicious behavior in computer systems. YARA Snort Kont, Markus. "IDS...

Sigma Psi Zeta (ΣΨΖ) Sorority, Inc., also known as Sigmas or SYZ, is a progressive multicultural American sorority. It was founded on March 23, 1994,...

Eta Sigma Phi is an honorary society for classical studies. Following is a list of Eta Sigma Phi chapters. Active chapters are indicated in bold. Inactive...

Smith & Wesson SW series, most commonly referred to as the Smith & Wesson Sigma, was Smith & Wesson's first venture into using synthetic materials in pistol...

Sigma Gamma Chi (ΣΓΧ) was a fraternal organization sponsored by the Church of Jesus Christ of Latter-day Saints (LDS Church). Although it once was a national...

(Y-\mu _{Y})]/(\sigma _{X}\sigma _{Y})\,,} so that ρ X Y = σ X Y / ( σ X σ Y ) {\displaystyle \rho _{XY}=\sigma _{XY}/(\sigma _{X}\sigma _{Y})} where E...

Delta Sigma Pi (ΔΣΠ) (officially the International Fraternity of Delta Sigma Pi, Inc.) is a coeducational professional business fraternity and one of the...

Sigma Lambda Alpha Sorority, Inc. (ΣΛΑ) or Señoritas Latinas en Acción Sorority, Inc. is an American Latina based Greek-lettered sorority of college-educated...

Sigma (Science in General Management) was a limited company established by Henry Novy, Stafford Beer and Roger Eddison in 1961. It sold operational research...

Delta Sigma Epsilon may refer to: Delta Sigma Epsilon (Greek army), Democratic Army of Greece during the 1946–1949 civil war Delta Sigma Epsilon (sorority)...

EADS 3 Sigma is the name since 2002 (when its majority was acquired by the European EADS Group) of the Greek 3 Sigma aerospace company. It was founded...

The sigma baryons are a family of subatomic hadron particles which have two quarks from the first flavour generation (up and / or down quarks), and a...

Sigma is a community near Sandbridge in the independent city of Virginia Beach, Virginia, United States. Sigma lies just south of Lago Mar on Ashville...

Phi Sigma Delta (ΦΣΔ), colloquially known as Phi Sig, was an American collegiate fraternity established in 1909 with a predominantly Jewish membership...

Sigma Tau (ΣΤ) was an American honor society in the field of engineering. It was founded at the University of Nebraska in 1904 and merged with Tau Beta...

{\bar {\Sigma }}} and standard deviation σ Σ {\displaystyle \sigma _{\Sigma }} : Σ T ∼ N ( Σ ¯ , σ Σ ) {\displaystyle \Sigma _{T}\sim N({\bar {\Sigma }},\sigma...

P(IV)(\sigma ,\sigma ,1,\alpha )=P(I)(\sigma ,\alpha ),} P ( I V ) ( μ , σ , 1 , α ) = P ( I I ) ( μ , σ , α ) , {\displaystyle P(IV)(\mu ,\sigma ,1,\alpha...

Alpha Sigma Mu (ΑΣΜ) is an international scholastic honor society recognizing academic achievement among students in the fields of metallurgy and materials...

Sigma Lambda Alpha (ΣΛΑ) may refer to: Sigma Lambda Alpha (sorority), an American Latina-based organization for college-educated women Sigma Lambda Alpha...

mathematics, the ba space b a ( Σ ) {\displaystyle ba(\Sigma )} of an algebra of sets Σ {\displaystyle \Sigma } is the Banach space consisting of all bounded...

merger with the Phi Sigma Kappa (ΦΣΚ) fraternity. In 1985, most Phi Sigma Epsilon chapters participated in the merger. Phi Sigma Kappa incorporated many...

Sigma Alpha Mu, commonly known as Sammy, is a college fraternity founded at the City College of New York in 1909. Following are some of the notable members...

Lambda Kappa Sigma (ΛΚΣ or LKS) is an international pharmacy fraternity headquartered in Muskego, Wisconsin. Founded in 1913, it was created to promote...

Sigma Omega Nu Latina Interest Sorority Inc. (ΣΏΝ) is an American collegiate sorority for Latina women. It was formed at California Polytechnic State...

Tau Phi Sigma (ΤΦΣ) is a multicultural service-oriented college fraternity, founded in 1992 at the campus of the University of Illinois at Urbana-Champaign...

SIGMA Clermont is a French graduate engineering school and is a public institution under the authority of the French Ministry of Higher Education, Research...

Sigma Iota Rho (ΣΙΡ) is an international collegiate honor society for international studies. It was established in 1984 at American University in Washington...

Delta Sigma Delta (ΔΣΔ) is an international professional dental fraternity. Founded in 1882, it is the oldest and largest of the professional dental fraternities...

Phi Sigma Pi National Honor Fraternity (ΦΣΠ) is a gender-inclusive and mixed-sex national honor fraternity based in the United States. The fraternity...

billionaire hedge fund manager. Overdeck is the co-founder and co-chairman of Two Sigma Investments, a New York City-based hedge fund that uses a variety of technological...

Sigma Gamma Epsilon is a national honor society for earth sciences. It was formed in 1915 at the University of Kansas. In the following list of chapters...

Sigma Phi Beta (ΣΦΒ) was an American college fraternity for gay, straight, bisexual, and transgender men. It was founded at Arizona State University in...

Pi Tau Sigma (ΠΤΣ) is an international honor society in the field of mechanical engineering. The society was established in 1915 at the University of...

Upsilon Phi Sigma (ΥΦΣ), abbreviated as UPS, is a Filipino inter-university and collegiate fraternity and sorority. It was established in the University...

Phi Tau Sigma (ΦΤΣ) is an international honor society for food science and technology. It was founded in 1953 at the University of Massachusetts Amherst...

Sigma Alpha Omega (ΣΑΩ) is an American non-denominational Christian sorority for women. The sorority was established at North Carolina State University...

  Phi Sigma Chi (ΦΣΧ) was an American secondary social fraternity. It was founded in 1901 in at the Zanesville High School in Zanesville, Ohio. It was...

Beta Sigma Omicron (ΒΣΟ) was an American college sorority. It was founded in 1888 at the University of Missouri in Columbia, Missouri. The sorority established...

The Sigma 70-200mm f2.8 EX DG OS HSM is a camera lens produced by the Sigma Corporation. The lens features an Optical Stabiliser function, which in turn...

Sigma Phi Omega (ΣΦΩ), also known as Sigmas, is an Asian American interest sorority founded at the University of California, Los Angeles in Los Angeles...

{\boldsymbol {\sigma }}={\begin{bmatrix}\sigma _{11}&\sigma _{12}&\sigma _{13}\\\sigma _{21}&\sigma _{22}&\sigma _{23}\\\sigma _{31}&\sigma _{32}&\sigma _{33}\end{bmatrix}}\quad...

Upsilon Phi Sigma is an inter-university and collegiate fraternity and sorority that was established at the University of the Philippines Los Baños on...

Xi Sigma Pi (ΞΣΠ) is an international honor society for Forestry and related sciences. It was founded on November 24, 1908, at the University of Washington...

Sigma Delta Pi (ΣΔΠ) is the national collegiate Hispanic honor society (La Sociedad Nacional Honoraria Hispánica). It was established on November 14,...

{\displaystyle V_{\text{LJ}}(r)=4\varepsilon \left[\left({\frac {\sigma }{r}}\right)^{12}-\left({\frac {\sigma }{r}}\right)^{6}\right],} where r is the distance between...

Sigma Zeta is a international honor society for the natural sciences, computer science, and mathematics. It was founded in 1925 at the now defunct Shurtleff...

The Sigma DP2 Merrill is a high-end compact digital camera made by Sigma Corporation. It features a 46-megapixel Foveon X3 sensor (4704 × 3136 × 3 layers)...

Alpha Omicron Sigma (ΑŌΣ) is a Puerto Rican fraternity established in 1957. Alpha Omicron Sigma fraternity was established during August and September...

Phi Sigma Rho (ΦΣΡ; also known as Phi Rho or PSR) is a social sorority for individuals who identify as female or non-binary in engineering and technology...

{\displaystyle \sigma =(\sigma _{0},\sigma _{1},\dots ,\sigma _{k})} of letters σ i {\displaystyle \sigma _{i}} from a finite alphabet Σ {\displaystyle \Sigma } ,...

the two generations. Gina Desiderio (Healthy Teen Network) defines Gen Sigma as those born between 2007 and 2013. Ben Rosen (Connect) and Vicki Ostrom...

Sigma Huda (née Kabir; 1944/1945 – 17 July 2024) was a Bangladeshi lawyer. She was the founding president of Bangladesh Women Lawyers Association (BNWLA)...

Premier Sigma (a compact diesel MPV) Premier Sigma Lifeline (an ambulance based on Sigma Platform) Premier Sigma Express (a cargo carrier based on Sigma Platform)...

{\displaystyle {\begin{bmatrix}\sigma _{11}&\sigma _{12}&\sigma _{13}\\\sigma _{21}&\sigma _{22}&\sigma _{23}\\\sigma _{31}&\sigma _{32}&\sigma _{33}\end{bmatrix}}}...

Sigma Ophiuchi, Latinized from σ Ophiuchi, is a single, orange-hued star in the equatorial constellation Ophiuchus. Its apparent visual magnitude is 4...

Beta Gamma Sigma (ΒΓΣ) is an international business honor society. Founded in 1913 at the University of Wisconsin, University of Illinois and the University...

Alpha Sigma Delta (ΑΣΔ) was an American collegiate sorority that formed in 1918 at University of California, Berkeley. It was absorbed by Lambda Omega...

"Cry" is a song performed by British drum and bass duo Sigma featuring vocals from English pop group Take That (lead vocals by Gary Barlow). The song...

The Sigma Sigma–Delta Chi Fraternity House, also known as the Iowa House, is a historic building in Ames, Iowa, United States. It is located at 405 Hayward...

Sigma Iota Alpha or Hermandad de Sigma Iota Alpha, Incorporated, is a Latina-oriented Greek letter intercollegiate sorority. It was founded in 1990 at...

Sigma Phi Beta (ΣΦΒ) may refer to: Sigma Phi Beta (fraternity), a college fraternity for gay, straight, bisexual, and transgender men. Sigma Phi Beta (sorority)...

F ) ⋅ n d S . {\displaystyle \oint _{\partial \Sigma }\mathbf {F} \cdot d\mathbf {r} =\iint _{\Sigma }(\nabla \times \mathbf {F} )\cdot \mathbf {n} \...

Gamma Sigma Delta (ΓΣΔ), or more fully, the Honor Society of Agriculture, Gamma Sigma Delta, is an international honor society for agriculture students...

Sigma Alpha Delta (ΣΑΔ) is an honor society at Baruch College in New York City, New York. Established in 1932, it is the oldest honor society at the college...

{\displaystyle T} T δ σ = ( T δ ) σ . {\displaystyle T_{\delta \sigma }=(T_{\delta })_{\sigma }.} Now define by transfinite induction a sequence G m {\displaystyle...

guided-missile frigates of the Indonesian Navy are SIGMA 10514 types of the Netherlands-designed Sigma family of modular naval vessels, named after Indonesian...

The Sigma DP1 Merrill is a high-end compact digital camera made by Sigma Corporation. It features a 46-megapixel Foveon X3 sensor (4704 × 3136 × 3 layers)...

"Changing" is a song by British record production duo Sigma. It was co-written by TMS, Wayne Hector and Ella Eyre. The song features English singer Paloma...

{\displaystyle I_{2}={\frac {1}{6}}\left[(\sigma _{1}-\sigma _{2})^{2}+(\sigma _{2}-\sigma _{3})^{2}+(\sigma _{3}-\sigma _{1})^{2}\right]} The criterion assumes...

Phi Sigma Gamma (ΦΣΓ or PSG) is an American men's osteopathic medical fraternity. It was established in 1915 in Chicago, Illinois, through the merger...

Nu Sigma Nu (ΝΣΝ) was a North American professional fraternity for medicine, now existing as a handful of chapters. It was founded in 1882 by five medical...

+ F = ρ u ¨ {\displaystyle {\boldsymbol {\nabla }}\cdot {\boldsymbol {\sigma }}+\mathbf {F} =\rho {\ddot {\mathbf {u} }}} Strain-displacement equations:...

Theta Sigma Phi (ΘΣΦ) was an American honor society for women in journalism. It was established in 1909 at the University of Washington in Seattle, Washington...

Sigma Tau Phi (ΣΤΦ) was a historically Jewish collegiate fraternity. It was founded in 1918 at the University of Pennsylvania as a society for engineering...

Alpha Phi Sigma (ΑΦΣ) (Phi is pronounced "fi") is a North American Criminal Justice Honor Society. The society was established at Washington State University...

The Sigma DP3 Merrill is a high-end compact digital camera made by Sigma Corporation. It features a 46-megapixel Foveon X3 sensor (4704 × 3136 × 3 layers)...

Sigma Tau Gamma (ΣΤΓ), commonly known as Sig Tau, is a United States college social fraternity founded on June 28, 1920, at the University of Central...

The Sigma Motor Corporation was a South African motor vehicle assembler and distributor. It operated under the Sigma name until 1985 and was based in Silverton...

{\displaystyle s(z)={\frac {\sigma ^{2}(1-\lambda )-z-{\sqrt {(z-\sigma ^{2}(\lambda +1))^{2}-4\lambda \sigma ^{4}}}}{2\lambda z\sigma ^{2}}}} for complex numbers...

Phi Beta Sigma (ΦΒΣ) is an international historically Black fraternity. Founded on January 9, 1914, on the campus of Howard University in Washington,...

The Sigma dp0 Quattro is a discontinued fixed-focal length APS-C digital point-and-shoot camera, announced by Sigma on February 10, 2015. Like other cameras...

Pi Lambda Sigma (ΠΛΣ) was an American collegiate sorority for Catholic women. It merged with Theta Phi Alpha in 1952. Pi Lambda Sigma was founded on June...

Phi Sigma Beta (ΦΣΒ) may refer to: Phi Sigma Beta (Puerto Rico), a former country district of Phi Sigma Alpha fraternity Tau Delta Phi, a Jewish high...

Phi Sigma Iota (ΦΣΙ) is an international honor society for students of modern and classical foreign languages and literatures. Its primary objectives...

The Sigma 30mm f/1.4 EX DC HSM is a wide-aperture photographic lens made by the Sigma Corporation, equipped with a Hyper Sonic Motor (abbreviated HSM...

The Sigma Islands are a group of small islands and rocks which lie 5.6 km (3 nmi) north of Eta Island and mark the north limit of the Melchior Islands...

Sigma Tau Delta (ΣΤΔ) is a US-based, international honor society for students of English at four-year colleges and universities who are within the top...

Alpha Chi Sigma (ΑΧΣ) is a professional fraternity specializing in the fields of the chemical sciences. It has both collegiate and professional chapters...

The EADS 3 Sigma Nearchos is a medium distance reconnaissance unmanned aerial vehicle (UAV) introduced in 1996, one of several UAVs developed by the Greek...

fraternities that formed the Miami Triad, along with Phi Delta Theta and Sigma Chi. Students at Miami University at the time of Beta's founding had previously...

Gamma Sigma Fraternity International (ΓΣ), was the first international secondary or high school fraternity. Initially founded as a literary society in...

The Gnome 7Σ Sigma (commonly called the Gnome 60 hp) is a French seven-cylinder, air-cooled rotary aero engine. The Sigma produced 60 hp (45 kW) from its...

Beta Phi Mu. Merged with Delta Zeta. Merged with Beta Sigma Omicron. Merged with Sigma Sigma Sigma. Originally a Jewish sorority. Merged with Phi Omega...

Sigma Theta Tau is an international honor society for nursing. It was established in at Indiana University in Indianapolis, Indiana on October 4, 1922...

issued a press release in December 2004 identifying the vessel as Project Sigma, which was how it became most commonly known during her construction. Its...

and start to rebel against their human counterparts under the command of Sigma, X decides to make up for his creations by joining the Hunters. Throughout...

Theta Pi Sigma (ΘΠΣ) is an American queer-focused, gender-neutral fraternal organization. It was established in 2005 at the University of California,...

most beloved and popular of college fraternity songs, "The Sweetheart of Sigma Chi" was written in 1911 by Byron D. Stokes (Albion Class of 1913) and F...

Chi Sigma Iota Counseling Academic and Professional Honor Society International (ΧΣΙ, CSI, or Chi Sigma Iota) is the international and professional academic...

Sigma Alpha Rho (ΣΑΡ) is a North American Jewish high school fraternity. It was founded on November 18, 1917, in West Philadelphia, Pennsylvania. However...

{\displaystyle {\mathcal {L}}={1 \over 2}g(\partial ^{\mu }\Sigma ,\partial _{\mu }\Sigma )-V(\Sigma )} where we have used a + − − − metric signature and the...

mean, σ x ¯ {\displaystyle {\sigma }_{\bar {x}}} , given by: σ x ¯ = σ n . {\displaystyle {\sigma }_{\bar {x}}={\frac {\sigma }{\sqrt {n}}}.} Practically...

Sigma Iota Alpha, more formally Hermandad de Sigma Iota Alpha, Incorporada (ΣΙΑ), and known as SIA, is a Latina-oriented Greek letter intercollegiate sorority...

Sigma Alpha (ΣΑ) also known as the Black Badge, was an American collegiate fraternity. It was established in 1859 at Roanoke College in Salem, Virginia...

fewer than the 1.6 in Japan. Mitsubishi Galant Sigma Eterna (Spain) Interior (Sigma 2000 GSR) Mitsubishi Sigma Turbo GH (Australia; facelift) Facelifted taillights...

{1}{2}}\sigma ^{2}\tau }{\sigma {\sqrt {\tau }}}}\\d_{2}&={\frac {\ln(F/K)-{\frac {1}{2}}\sigma ^{2}\tau }{\sigma {\sqrt {\tau }}}}=d_{1}-\sigma {\sqrt...

X_{j}^{0}=\mu +\sigma Z_{j}^{0},} X j 1 = μ + σ M 0 Z 1 + σ S 1 Z j 1 , {\textstyle X_{j}^{1}=\mu +{\frac {\sigma }{\sqrt {M_{0}}}}Z^{1}+\sigma {\sqrt {S^{1}}}Z_{j}^{1}...

Lambda Sigma Gamma Sorority, Incorporated (ΛΣΓ) is an American multicultural sorority. It was founded at California State University, Sacramento, in 1986...

Sigma Lambda Pi (ΣΛΠ) was an officially non-sectarian and historically Jewish fraternity founded in 1915 at New York University. It stopped operations...

Anastasi I as Karetai Thoupar. According to the traditions of the Kappa Sigma fraternity, the fraternity evolved from an ancient order, known in some...

_{t}+\sigma _{c})}}\right)\left({\cfrac {\sigma _{b}(3\sigma _{t}-\sigma _{c})-2\sigma _{c}\sigma _{t}}{4\sigma _{b}^{2}+2\sigma _{b}(\sigma _{t}-\sigma _{c})-\sigma...

Sigma Phi Rho Fraternity, Inc. (ΣΦΡ) is an African American collegiate fraternity. It was established at Wagner College in Staten Island, New York in...

Sigma Gamma Tau (ΣΓΤ) is the American honor society in aerospace engineering. The society formed from the merger of Tau Omega and Gamma Alpha Rho in 1953...

\left[\exp \left(2\sigma W_{t}-\sigma ^{2}t\right)\mid {\mathcal {F}}_{s}\right]=e^{\sigma ^{2}(t-s)}\exp \left(2\sigma W_{s}-\sigma ^{2}s\right),\quad...

{\displaystyle \delta R_{\sigma \nu }=\nabla _{\rho }\delta \Gamma _{\nu \sigma }^{\rho }-\nabla _{\nu }\delta \Gamma _{\rho \sigma }^{\rho },} where δ Γ...

∘ = σ T 4 . {\displaystyle M^{\circ }=\sigma \,T^{4}.} The constant of proportionality, σ {\displaystyle \sigma } , is called the Stefan–Boltzmann constant...

{\displaystyle \sigma _{2,1,1}={\begin{vmatrix}\sigma _{2}&\sigma _{3}&\sigma _{4}\\\sigma _{0}&\sigma _{1}&\sigma _{2}\\0&\sigma _{0}&\sigma _{1}\end{vmatrix}}...

{P}}\left\{O_{1}(\sigma _{1})O_{2}(\sigma _{2})\cdots O_{N}(\sigma _{N})\right\}\equiv O_{p_{1}}(\sigma _{p_{1}})O_{p_{2}}(\sigma _{p_{2}})\cdots O_{p_{N}}(\sigma _{p_{N}})...

Alpha Phi Sigma is an international criminal justice honor society. The society was established at Washington State University in January 1942. It is...

Xi Sigma Pi is a North American honor society for forestry and related sciences. In the following list, active chapters are noted in bold and inactive...

{\displaystyle \sigma } , expressed as density matrices, is commonly defined as: F ( ρ , σ ) = ( tr ⁡ ρ σ ρ ) 2 . {\displaystyle F(\rho ,\sigma )=\left(\operatorname...

Sigma Iota Chi (ΣΙΧ) was a national junior college sorority in the United States. Sigma Iota Chi was established as a literary sorority in 1903 and installed...

Lambda Sigma (ΛΣ) is an American college honor society for second-year students. Originally named the Society of Cwens, the society was established at...

{\displaystyle {\begin{cases}{\frac {\partial V}{\partial t}}+{\frac {1}{2}}\sigma ^{2}S^{2}{\frac {\partial ^{2}V}{\partial S^{2}}}+rS{\frac {\partial V}{\partial...

σ-algebra of τ-past. If σ , τ {\displaystyle \sigma ,\tau } are two stopping times and σ ≤ τ {\displaystyle \sigma \leq \tau } almost surely, then F σ ⊂ F τ...

Rabbi Sigma Faye Coran (March 23, 1966 – May 8, 2020) was Senior Rabbi at Rockdale Temple, Amberley, Ohio. She was the first woman to serve as the senior...

{\begin{aligned}\Delta \sigma &=2\arcsin {\tfrac {1}{2}}\Delta \sigma _{\text{c}},\\\Delta \sigma _{\text{c}}&=2\sin {\tfrac {1}{2}}\Delta \sigma .\end{aligned}}}...

Phi Omega Sigma of the Philippines has no legal or fraternal affiliation with Phi Omega Sigma at the College of Wooster or Phi Omega Sigma Christian fraternity...

SIGMA was an electronic verification service offered by Nielsen Media Research, generally used to track airplay for commercials, infomercials, video news...

}{\cosh \tau -\cos \sigma }}\sin \phi } z = a   sin ⁡ σ cosh ⁡ τ − cos ⁡ σ {\displaystyle z=a\ {\frac {\sin \sigma }{\cosh \tau -\cos \sigma }}} together with...

Delta Sigma Xi, Inc. (ΔΣΞ) (also Delta Sigma Xi) is a confraternity that was established at the Manuel Luis Quezon University (MLQU), Philippines, in 1971...

{\displaystyle \sigma _{A}(R)=\sigma _{A}\sigma _{A}(R)\,\!} σ A σ B ( R ) = σ B σ A ( R ) {\displaystyle \sigma _{A}\sigma _{B}(R)=\sigma _{B}\sigma _{A}(R)\...

The Sigma 50mm f/1.4 EX DG HSM is a normal prime lens made by the Sigma Corporation. The lens is produced in Canon EF mount, Four Thirds System, Nikon...

The Sigma 105mm f/2.8 EX DG is a macro lens produced by Sigma Corporation. The lens has six different variates, fitting on the Sigma SA mount, Canon EF...

Lambda Sigma is an American college honor society for second-year students. Originally named the Society of Cwens,it was established at the University...

P := Σ 0 P := Π 0 P := P , {\displaystyle \Delta _{0}^{\mathrm {P} }:=\Sigma _{0}^{\mathrm {P} }:=\Pi _{0}^{\mathrm {P} }:=\mathrm {P} ,} where P is...

Tau Beta Sigma Honorary Band Sorority (ΤΒΣ, colloquially referred to as TBSigma or TBS) is a co-educational recognition and service sorority for collegiate...

Life is the debut studio album by English drum and bass duo Sigma. It was released on 4 December 2015, through 3 Beat Records. "Rudeboy" featuring Doctor...

pair ( X , Σ ) {\displaystyle (X,\Sigma )} is called a measurable space, and the members of Σ {\displaystyle \Sigma } are called measurable sets. A triple...

{\displaystyle \sigma (\lambda z)={\bar {\lambda }}\sigma (z)\,} and σ ( z 1 + z 2 ) = σ ( z 1 ) + σ ( z 2 ) {\displaystyle \sigma (z_{1}+z_{2})=\sigma (z_{1})+\sigma...

length. The loop is typically shaped like a Greek letter sigma (ς) or Latin letter S (thus sigma + -oid). This part of the colon normally lies within the...

30, 2012. "Famous Members of Sigma Nu". Sigma Nu Fraternity Inc. "IMDb: Vir Das". IMDb. "Notable Sigma Nu Members". Sigma Nu. Retrieved December 26, 2020...

by taking the power set of X {\displaystyle X} as the sigma-algebra Σ ; {\displaystyle \Sigma ;} that is, all subsets of X {\displaystyle X} are measurable...

(\sigma _{x}^{2}+\sigma _{y}^{2}-2\rho \sigma _{x}\sigma _{y})}}}\exp \left(-{\frac {z^{2}}{2(\sigma _{x}^{2}+\sigma _{y}^{2}-2\rho \sigma _{x}\sigma _{y})}}\right)}...

{\displaystyle T=\sigma _{N}/A\sigma _{0}} , where σ N {\displaystyle \sigma _{N}} can be parameterized in terms of σ 0 {\displaystyle \sigma _{0}} as σ N...

Eugraphe sigma is a moth of the family Noctuidae. It is found from most of Europe (except Ireland, Great Britain, the Iberian Peninsula and Greece) to...

Graduates". In 2010, Ford Sigma-engined cars were introduced as a sub-class of Super Graduates. From 2011 onwards, the Sigma cars have been a separate...

Sigma Delta Rho (ΣΔΡ) was a small American's men's fraternity founded on January 8, 1921 at Miami University of Ohio, the fifth general social fraternity...

Sigma Gamma Tau is the American honor society in aerospace engineering. The society formed from the merger of Tau Omega and Gamma Alpha Rho in 1953. It...

{\frac {\mathrm {d} }{\mathrm {d} t}}\iint _{\Sigma }\mathbf {B} \cdot \mathrm {d} \mathbf {S} =\iint _{\Sigma }{\frac {\partial \mathbf {B} }{\partial t}}\cdot...

{\displaystyle \Sigma } , a formal language L {\displaystyle L} over Σ {\displaystyle \Sigma } is a subset of Σ ∗ {\displaystyle \Sigma ^{*}} , where Σ...

interaction with an atomic nucleus. Cross section is typically denoted σ (sigma) and has dimension of area, with units of square meter or more often in...

Forum of Mathematics, Pi and Forum of Mathematics, Sigma are open-access peer-reviewed journals for mathematics published under a creative commons license...

Sigma Delta Kappa (ΣΔΚ) was an American professional fraternity in the field of law. It was founded in 1914 at the University of Michigan Law School....

Q={\begin{bmatrix}\sigma _{x}^{2}&\sigma _{xy}&\sigma _{xz}&\sigma _{xt}\\\sigma _{xy}&\sigma _{y}^{2}&\sigma _{yz}&\sigma _{yt}\\\sigma _{xz}&\sigma _{yz}&\sigma _{z}^{2}&\sigma...

mathematically as σ y 2 ( τ ) {\displaystyle \sigma _{y}^{2}(\tau )} . The Allan deviation (ADEV), also known as sigma-tau, is the square root of the Allan variance...

μ , σ 2 2 θ ) . {\displaystyle X\sim {\mathcal {N}}\left(\mu ,{\frac {\sigma ^{2}}{2\theta }}\right).} The process is stationary when its initial value...

\sigma _{t}^{2}=\omega +\alpha _{1}\epsilon _{t-1}^{2}+\cdots +\alpha _{q}\epsilon _{t-q}^{2}+\beta _{1}\sigma _{t-1}^{2}+\cdots +\beta _{p}\sigma _{t-p}^{2}=\omega...

\sigma (j+1)<\sigma (i)<\sigma (k)<\sigma (j)} or σ ( j ) < σ ( k ) < σ ( i ) < σ ( j + 1 ) {\displaystyle \sigma (j)<\sigma (k)<\sigma (i)<\sigma (j+1)}...

Phi Lambda Sigma (ΦΛΣ), also known as the National Pharmacy Leadership Society, is a North American college honor society for pharmacy students. It was...

Delta Sigma Iota (ΔΣΙ) is a collegiate, South Asian interest, multicultural, social fraternity located in the United States. It was established at Pennsylvania...

Tau Sigma Delta is an American scholastic honor society that recognizes the academic achievements of students in the field of architecture and allied...

Kappa Sigma Kappa (ΚΣΚ) is the name of three separate college fraternities, sharing a common history and traditions but disconnected by decades and a...

{\displaystyle \sigma '} is more general than σ {\displaystyle \sigma } , formally σ ′ ⊑ σ {\displaystyle \sigma '\sqsubseteq \sigma } , if some quantified...

This list contains the names and schools of all Kappa Sigma chapters and colonies. The fraternity was established at the University of Virginia in 1869...

industry. It differs from Six Sigma in that the goal of Six Sigma is to reduce variation but has similarities to Design for Six Sigma (DFSS). According to the...

Delta Sigma Epsilon was a national collegiate social sorority founded at Miami University, operating in the United States from 1914 to 1956. The sorority...

high school fraternity. It was followed by Gamma Sigma, Alpha Zeta, Alpha Phi, Sigma Psi, Alpha Chi Sigma, Pi Phi, Gamma Delta Psi, Eta Kappa, and more....

Sigma Chi is a North American collegiate fraternity. It was established in 1855 at Miami University in Oxford, Ohio, by members who split from the Delta...

Sigma Gamma Rho is a historically African American sorority that was founded in 1922 at Butler University. Below is a list of some of the notable members...

Sigma non-innocence is a special form of non-innocence, an oxidation characteristic in metal complexes. It is mainly discussed in coordination complexes...

Q(p;\mu ,\sigma ,\xi )={\begin{cases}\mu -\sigma \ \ln(-\ln p)~~&{\text{for }}~~\xi =0~~{\text{ and }}~~p\in (0,1)\ ,\\\mu +{\dfrac {\sigma }{\xi }}{\Big...

Sigma Omega Psi (ΣΩΨ) was a historically Jewish Fraternity founded in 1914 and which merged into Alpha Epsilon Pi (ΑΕΠ) in 1940. Sigma Omega Psi was founded...

Theta Sigma Upsilon (ΘΣΥ) was an American sorority founded on March 25, 1921, at Emporia State University. It chartered 23 chapters in the United States...

The Sigma 300 – 800 mm lens is a professional-level supertelephoto zoom lens made by Sigma Corporation from 2002 to 2019 for use with analog and digital...

u ( σ ) d σ {\displaystyle y(t)=y(t_{0})+\int _{t_{0}}^{t}T(t,\sigma )u(\sigma )d\sigma } , where T ( ⋅ , ⋅ ) {\displaystyle T(\cdot ,\cdot )} is the weighting...