On Feb 18, 2:18 pm, eliben <eli...@gmail.com> wrote: > Hello, > > What are some good & recommended number theory libs for Python (or > accessible interfaces to C libs), for things like primes, > factorization, etc. Naturally, speed is of utmost importance here. > > In other words, which Python libraries and tools to you use to help > you solve Project Euler problems :-) ? > > Eli
Also check out the gmpy library, lots of good number theory stuff like factorial, gcd, lcm, linear congruence, is_prime, next_prime, (I even found a use for the legendre function), etc. (no factorization, I have Python call the MIRACL factor program when I need that) gmpy is so vital to my work that if they ever stop supporting it, I will abandon Python. -- http://mail.python.org/mailman/listinfo/python-list