Dr Jekyll & Mr Hyde

Before leaving for my vacation,here are two small Python libraries I wrote that may help you if you want to participate to Project Euler:

primes.py: fast prime number generation and integer factorization
pell.py: find solutions pairs to Pell diophantine equation x2-Dy2=1

This may come as a surprise, but I will today write about a programming language for which no Free Software implementation exists, the J programming language. J does not stand for the J dirty word (Java), but is the full name of the language.
I first heard about J while solving some problems on the Project […]