jordan_matrix, an Octave code which returns a random matrix in Jordan canonical form.
The computer code and data files described and made available on this web page are distributed under the MIT license
jordan_matrix is available in a MATLAB version and an Octave version and a Python version.
levenshtein_matrix, an Octave code which returns the Levenshtein distance matrix defined by two strings.
test_matrix, an Octave code which defines test matrices for which the condition number, determinant, eigenvalues, eigenvectors, inverse, null vectors, P*L*U factorization or linear system solution are known. Examples include the Fibonacci, Hilbert, Redheffer, Vandermonde, Wathen and Wilkinson matrices.