Gaussian Elimination

A simple function to reduce a matrix into row echelon form.

The function takes a single input argument and gives a single output variable. It is better to push the null vectors in the matrix on the end rows and columns in the matrix. Rows and columns in the output may sometimes need to be rearranged (swapped) to make an echelon form. All other is set.

The code is super simple. Hope you find it helpful :)