Gauss Elimination

This is an applet that allow you do perform Gauss Elimination. You can either use the problem shown, or type in your own problem. To type your own problem, simply feed in matrix size on the left text field (e.g., for a 2 x 2 matrix, type in 2,2. Then the matrix on the right text field. E.g. for a matrix with first row 1, 2,3 and second 3,4,5 type in 1,2,3,3,4,5, then click on "input problem".

Once you think you have completed Gauss Elimination, click on "check" to check if you are done.

Problem 1

Problem 2

Problem 3

Finding inverse of a square matrix using Gauss Elimination

Given a matrix A, its inverse can be found by solving A X = I where X is of the same size as A and I is a unit matrix the same size as A.

You then form the augmented matrix

 (A|I)

And convert the augmented matrix to a reduced form

 (I|X)

using Gauss elimination. Then X is the inverse of A.

Matrix Inverse Problem 1

Matrix Inverse Problem 2

Matrix Inverse Problem 3

Yifan Hu

Last modified: Thu Jan 26 10:39:20 CST 2006