Anirban Banerjee wrote:
> Hi everyone,
> Can someone please let me have a pointer to how I may obtain a cube root of
> a BIGNUM,
Hopefully others will have better ideas but one possibility is to
use Newton's formula. I'm not sure what it is with cube roots but
it's probably something like:
y = guess;
while (error too large)
y = (y + x/y/y)/2
For the initial estimate it's good enough to create any number
with one third of the number of bits in the number you're taking
the cube root of.
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