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Daveeberly (talk | contribs) Clarification of the fastsqrt section. Simplification of the two-variable iterative method. |
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It is not clear where the pair of equations come from, although reverse engineering them is not too difficult. However, it is simple enough to show that a[n+1] = (3*S*a[n] - a[n]^3)/(2*S), which makes the algorithm equivalent to applying Newton's method to F(y) = 1/y^2 - 1/S (the a[i] are the iterates with a[0] = S).[[User:Daveeberly|Daveeberly]] ([[User talk:Daveeberly|talk]]) 06:15, 14 July 2010 (UTC)
== Last edits ==
In the hope of collaboration, the current version means nothing to laymen. Wikipedia is written for the general publix, not professionals. I believe the current explanation given is absolutely nonsensical to the common reader, and a much simpler explanation is easily possible. If I have confused one variable, that variable can be changed. The useful technical information (geometric mean vs arithmetic mean) is best nested into the prose, as most people will not understand what either is. - '''[[User:Floydian|<font color="#5A5AC5">ʄɭoʏɗiaɲ</font>]]''' <sup>[[User_talk:Floydian|<font color="#3AAA3A">τ</font>]]</sup> <sub>[[Special:Contributions/Floydian|<font color="#3AAA3A">¢</font>]]</sub> 02:27, 8 August 2010 (UTC)
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