Discussion:  All Topics 
Topic:  Equations for finding roots 
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Subject:  RE: Equations for finding roots 
Author:  Mathman 
Date:  Sep 28 2004 
> I'm working on some 3d software, and am currently working on trying
> to use some of the SIMD CPU functions (MMX,SSE,3DNow,etc). I have
> been trying to find the mathematical equations or processes for
> computing the nth root of a number, with no real luck yet.
There are some oldfashioned ways of finding square root and cube root, but
they are tedious. Look into the Binomial Theorem [any index], and you might
also take a peek into some numerical analysis. The Binomial Theorem might suit
your purpose, but do consider calculating also any error involved in the
approximation.
David.
 
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