A permutation matrix is a special type of matrix that has exactly one 1 for each column/pivot in the matrix. I.e if a matrix is 4 x 4 it will have 4 ones, one per column and row.
The determinant of a permutation matrix is always either 1 or -1.
A permutation matrix is a special type of matrix that has exactly one 1 for each column/pivot in the matrix. I.e if a matrix is 4 x 4 it will have 4 ones, one per column and row.
The determinant of a permutation matrix is always either 1 or -1.