**Matrix inverse calculator**

(WIKIPEDIA)

The matrix inverse operation is performed instead of the matrix division process as it can not be done practically (matrix division). If the determinant of the matrix is not equal to zero, then the matrix is invertible. The inverse of the matrix can be found out by dividing the ad joint of a matrix by the determinant of the matrix.

The ad joint of the matrix is equal to the transpose of the cofactor matrix of the given matrix.