Solution of linear systems

6- Easy introduction to permutation matrix

December 17, 2025February 7, 2023 by Maged kamel

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?

2- Easy illustration for LU decomposition for 2×2 matrix

December 17, 2025November 14, 2022 by Maged kamel

How to use the Lu decomposition method for a 2×2 matrix? A step-by-step guide to find L and U values?

5A- Second solved problem-LU decomposition-3×3 matrix

December 15, 2025January 20, 2021 by Maged kamel

Second solved problem-LU decomposition-3×3 matrix-part 1-Find L and U.

The second solved problem-LU decomposition for the 3×3 matrices, how to get x,y,z values for three simultaneous equations?

5- First solved problem-LU decomposition for the 3×3 matrix

December 14, 2025January 15, 2021 by Maged kamel

First solved problem-LU decomposition for the 3x3 matrix.

This post illustrates the first solved problem-LU decomposition for the 3×3 matrix. Step by step guide to solve 3 simultaneous equations by the LU method?