Author: Gareth McCaughan
Date: 17:10:04 11/24/01
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On November 24, 2001 at 04:58:32, Russell Reagan wrote: > Does anyone know of any free C/C++ packages that handle extremely > large numbers? GMP (C, GPL, very good performance, quite broad functionality) CLN (C++, GPL, based on GMP) PARI (C, actually a more general number theory package) FreeLIP (C, was used to factor RSA-129)libI (C; don't know much about this one) Piologie (C++, free only for non-commercial purposes) NTL (C++, one version uses GMP and another doesn't) The only ones I've actually used are GMP and PARI; my experience with them is not extensive. My understanding is that GMP is in most respects the best of the bunch. I don't know whether the GPL is good or bad for your needs, though. There are some benchmarks at http://cr.yp.to/speed/mult.html . They aren't presented in a way that makes comparison easy, and focus on only one operation (multiplication of very large numbers of similar size). -- g
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