Unimodular matrix

In mathematics, a matrix is ​​called unimodular , depending on its definition , if:

• Its determinant is 1, so it is an element of the special linear group .
• Its entries are integers and their determinant is 1 or −1, see integer unimodular matrix .
• Its determinant is 1 or −1, see unimodular transformation .
• The determinant is a unit (for matrices over a general commutative ring with one), i.e. the matrix is regular .

This is a disambiguation page for differentiating between several terms identified with the same word.