6- Easy introduction to permutation matrix
The post includes an introduction to the permutation matrix for both 2×2 and 3×3 matrices. How to change the arrangement of rows and columns for matrices?
Introduction to Permutation matrix.
A permutation matrix is an orthogonal matrix used to change the order of rows or columns. Multiplying the matrix on the left by a permutation changes the rows. Multiplying the matrix by the right changes the columns.