Source: wikibot/totally-positive-matrix
= Totally positive matrix
{wiki=Totally_positive_matrix}
A totally positive matrix is a special type of matrix in linear algebra and combinatorics characterized by the positivity of its minors. Specifically, a matrix \\( A \\) of size \\( m \\times n \\) is called totally positive if all its minors of all orders (i.e., determinants of all square submatrices) are non-negative.