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Totally Unimodular

version (2.25 KB) by Robert
Checks if a matrix is totally unimodular


Updated 26 Feb 2013

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A matrix is totally unimodular provided all of its square submatrices have determinant 1, -1, or 0. This function checks if a matrix is totally unimodular. If it is not totally unimodular, it also returns the indices of the violating submatrix. This code differs from tum.m ( by iterating through all submatrices without making a long list of these submatrices, thus avoiding matlab memory/storage issues.

Cite As

Robert (2021). Totally Unimodular (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2012b
Compatible with any release
Platform Compatibility
Windows macOS Linux

Inspired by: Totally unimodular

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