pentominoes, a FORTRAN90 code which provides some utilities for manipulating pentominoes.
A pentomino is a shape formed by connecting 5 unit squares edgewise. Ignoring reflection and rotation, there are 12 distince pentominoes, nicknamed F, I, L, N, P, T, U, V, W, X, Y and Z.
The computer code and data files described and made available on this web page are distributed under the MIT license
pentominoes is available in a C version and a C++ version and a Fortran90 version and a MATLAB version and an Octave version and a Python version.