This user is busy in real life due to reason that a master of science in Physics has a lot of books to read and questions to clarify and may not respond swiftly to queries.

This user has received the Pfizer–BioNTech COVID-19 vaccine.

This user love you and Wikipedia. Warren Leywon is taking a short wikibreak and will be back on Wikipedia when the universe stops expanding itself. This user's page has been touched by a WikiFairy. This user has been on Wikipedia for 10 years, 6 months and 28 days. This user believes in the right of every human being to have access to Wikipedia. This user likes the animations by Walt Disney. This user suffers from serious allergic symptom. This user has a Chinese name called 'Liao Wang'. In which the surname is 'Liao' and the given name 'Wang'. This user participates in WikiProject Physics. This user is studying physics. This user's favorite subject is physics. This user is an enthusiast for mathematics. prog-1 This user is a beginning programmer. ♂ This contributor to Wikipedia is male. This user tries to do the right thing. If they make a mistake, please let them know. This user is a translator from English to Chinese on Wikipedia:Translate us. zh 該用戶的母語是中文。 该用户的母语是中文。 C:\>_ This user uses DOS, or knows how to use it. en-3 This user can contribute with an advanced level of English. This user loves using Linux! This user contributes using Debian, a community driven free operating system. This user really likes old computers. This user uses Inkscape extensively. This user uses Texmaker for editing in LaTeX. asm This user can program in assembly language. C-3 This user is an advanced C programmer. C++-1 This user is a beginning C++ programmer. LaTeX This user can typeset using LaTeX. ${\displaystyle E=\gamma mc^{2}}$ This user understands Physics at an advanced level. This user participates in WikiProject Education. ${\displaystyle \textstyle {\frac {\partial }{\partial x}}\,\;}$ This user partially participates in the Mathematics Collaboration of the Month. This user is a member of Wikipedians against censorship. This user is a participant in WikiProject LGBTQ+ studies. Talk | To do | Alerts | Watchlist

Welcome to the World of Mr.Leywon!

Here below is a list of what you will find here...

• ${\displaystyle \Sigma m\alpha \iota l}$:

If I'm still in mainland: [email protected]

If one day,that the net is for “free”,please Google me by: (Alright, don't try this email, completely blocked in mainland 😂)

• The Gmail is hidden for the protection of privacy*

Life, liberty, and the pursuit of happiness.

Welcome to Wikipedia,wish you enjoy yourself here!

Wikipedia:File copyright tags/Free licenses

I will post some useful link for study. Learning is important for a competent wikipedian!

• math resources

First a line of invisible words:

${\displaystyle \ }$

which is:

<!-- invisible comment here -->

The following codes are funny,I collect it just for amusement:

How about math?

How can you put subscripts on all the four corners of a symbol?Just use a fake object to trick on,br${\displaystyle \sigma \_\sigma }$:

{}_1^2J_3^4

${\displaystyle {}_{1}^{2}J_{3}^{4}}$

Atomic state:

2\ {}^2S_{1/2}

${\displaystyle 2\ {}^{2}S_{1/2}}$

For the cumbersome:

{}_1^{1234}J_1^{1234}

${\displaystyle {}_{1}^{1234}J_{1}^{1234}}$

Solution:

{}_{\ \ \ \ 1}^{1234}J_1^{1234}

${\displaystyle {}_{\ \ \ \ 1}^{1234}J_{1}^{1234}}$

a useful TeXnicality

${\displaystyle Y\ {\stackrel {\mathrm {def} }{=}}\ 1(y^{*}>0)}$

How to sign on something:

~~~~

which is automatically replaced by:

Warren Leywon (talk) 11:33, 9 June 2017 (UTC)

Life cannot be that without color!(Sorry for the guys who are with color blindness)Here is the palette: