# Cofactors, Adjoint and Inverse of a 3 by 3 Matrix

This calculator finds the matrix of cofactors, the adjoint matrix and the exact and approximate inverse matrix of a 3 by 3 given matrix.

__Calculator for Cofactors, Adjoint and Inverse of a 3 by 3 Matrix__

Enter the values in the cells of the top matrix.(decimal, fraction of the form a/b and whole numbers as shown in the example below, are accepted) then press "Calculate".

### More References and links

The Inverse of a Square Matrix

Maths Calculators and Solvers.