casevh at gmail.com
Sun Feb 1 09:27:09 CET 2009
On Jan 31, 9:36 pm, "Tim Roberts" <t.robe... at cqu.edu.au> wrote:
> Actually, all I'm interested in is whether the 100 digit numbers have an exact integral root, or not. At the moment, because of accuracy concerns, I'm doing something like
> for root in powersp:
> nroot = round(bignum**(1.0/root))
> if bignum==long(nroot)**root:
> which is probably very inefficient, but I can't see anything better.....
Take a look at gmpy and the is_power function. I think it will do
exactly what you want.
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