Talk:Mean

Relationship between different types of mean

I hase described these here:

http://en.wikipedia.org/wiki/Talk:Average#Relationship_between_different_types_of_mean

I would be very happy if someone could check them and add them to either article.

thanks.


Plugging in some numbers, it seems to me that none of these hold. Why should they? There is the exception that , but this only holds for . In this case you can simplify the harmonic mean as . xo Ergur (talk) 11:15, 5 August 2025 (UTC)Reply

The Rational Mean

The Rational Mean is the unifying concept which embraces all known Means and the most simple principle for generating high-order root-solving methods, as shown at: The Rational Mean

So, it is disturbing to realize so many people seem unaware of this basic arithmetical principles and methods. — Preceding unsigned comment added by Arithmonic (talkcontribs) 20 October 2006 (UTC)

graphics

i think it would be very useful to visualize the concept with such a graphic: [[1]]

Removing notes 1 and 2

These are about how certain things should be pronounced: first, and second, . Both of these have their own articles that are linked next to where the note is located, so the notes feel redundant. Additionally, in regards to note 1, the precise pronunciation of mathematics notation is not standardized and this types of descriptions come of as amateurish. I suggest removing both notes and clarifying "the greek letter ...". I will do this if no one objects. — xo Ergur (talk) 12:41, 5 August 2025 (UTC)Reply

Removing the table in Quasi-arithmetic mean

There are actually only two entries in the table: the power mean and the geometric mean. The other two are just special cases of the power mean. I suggest removing the table and adding text mentioning these two cases, un less there are other things to add to the table. If another example, or two, are added to the table, then I suggest removing the harmonic and arithmetic means, and referencing the previous subsection instead. I will do this if no one objects. This will also have the nice side effect of removing three notes, as they will either be unneeded or inlined. — xo Ergur (talk) 12:50, 5 August 2025 (UTC)Reply

Relationships between quantities

There are relationships between quantities.

  • (u1 + u2)(v1 + v2)/u1 + u2 + v1 + v2 = u1u2v1 + u1u2v2 + u1v1v2 + u2v1v2/(u1 + v1)(u2 + v2) means either u2/u1 = v2/v1 or v1/u1 = v2/u2.
  • (u1 + v1)(u2 + v2)/u1 + u2 + v1 + v2 = u1u2v1 + u1u2v2 + u1v1v2 + u2v1v2/(u1 + u2)(v1 + v2) means either u2/u1 = v2/v1 or v1/u1 = v2/u2.
  • (u1 + u2)(v1 + v2)(u1 + v1)(u2 + v2) = (u1 + u2 + v1 + v2)(u1u2v1 + u1u2v2 + u1v1v2 + u2v1v2) means u1v2 = u2v1.
  • (E1 + E2)(R1 + R2)/E1 + E2 + R1 + R2 = E1E2R1 + E1E2R2 + E1R1R2 + E2R1R2/(E1 + R1)(E2 + R2) means either E2/E1 = R2/R1 or R1/E1 = R2/E2.
  • (E1 + R1)(E2 + R2)/E1 + E2 + R1 + R2 = E1E2R1 + E1E2R2 + E1R1R2 + E2R1R2/(E1 + E2)(R1 + R2) means either E2/E1 = R2/R1 or R1/E1 = R2/E2.
  • (E1 + E2)(R1 + R2)(E1 + R1)(E2 + R2) = (E1 + E2 + R1 + R2)(E1E2R1 + E1E2R2 + E1R1R2 + E2R1R2) means E1R2 = E2R1.
  • (x1 + x2)(y1 + y2)/x1 + x2 + y1 + y2 = x1x2y1 + x1x2y2 + x1y1y2 + x2y1y2/(x1 + y1)(x2 + y2) means either x2/x1 = y2/y1 or y1/x1 = y2/x2.
  • (x1 + y1)(x2 + y2)/x1 + x2 + y1 + y2 = x1x2y1 + x1x2y2 + x1y1y2 + x2y1y2/(x1 + x2)(y1 + y2) means either x2/x1 = y2/y1 or y1/x1 = y2/x2.
  • (x1 + x2)(y1 + y2)(x1 + y1)(x2 + y2) = (x1 + x2 + y1 + y2)(x1x2y1 + x1x2y2 + x1y1y2 + x2y1y2) means x1y2 = x2y1.
  • (m + n)(p + q)/m + n + p + q = mnp + mnq + mpq + npq/(m + p)(n + q) means either n/m = q/p or p/m = q/n.
  • (m + p)(n + q)/m + n + p + q = mnp + mnq + mpq + npq/(m + n)(p + q) means either n/m = q/p or p/m = q/n.
  • (m + n)(p + q)(m + p)(n + q) = (m + n + p + q)(mnp + mnq + mpq + npq) means mq = np.

172.56.35.162 (talk) 15:49, 16 September 2025 (UTC)Reply

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