**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 GNU LGPL 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.

- euclid.py, the source code.
- euclid.sh, runs all the tests.
- euclid.txt, the output file.