euclid, a Python code which investigates various versions of Euclid's algorithm for computing the greatest common divisor (GCD) of two integers.
The computer code and data files made available on this web page are distributed under the MIT license
euclid is available in a MATLAB version and an Octave version and a Python version.
i4lib, a Python code which contains many utility routines, using integer arithmetic.
polpak, a Python code which evaluates a variety of mathematical functions, polynomials, and sequences, including Bell, Benford, Bernoulli, Bernstein, Cardan, Catalan, Charlier, Chebyshev, Collatz, Delannoy, Euler, Fibonacci, Gegenbauer, Gudermannian, Harmonic, Hermite, Hofstadter, Jacobi, Krawtchouk, Laguerre, Lambert, Legendre, Lerch, Meixner, Mertens, Moebius, Motzkin, Phi, Stirling, Tau, Tribonacci, Zernike.