Prepare questions for the review session next time
Whether you know it or not you've used Gauss elimination to solve systems of linear equations. What you probably never considered is that the method can be approached in a very systematic way, permitting implementation in a computer program. Also of importance is the fact that with very minimal additional effort, the program for Gauss elimination can be enhanced to perform Lower-Upper matrix factorization (write any non-singular matrix as a product of a lower triangular and an upper triangular matrix). I have prepared a detailed example of Gauss elimination and LU decomposition a Postscript file. .
Authored and Maintained by John Mahaffy : firstname.lastname@example.org