Cofactor
The matrix cofactor is a special signed version of the matrix minor. It is useful in calculating the inverse of a matrix. The cofactor <math>C_{ij}</math> is given by: <math>(-1)^{i+j}M_{ij}</math> where <math>M_{ij}</math> is the matrix minor.
It is useful in calculating the inverse of a matrix.
The cofactor <math>C_{ij}</math> is given by: