LU分解法的matlab实现

This a small program to implement the classical LU decomposition method solving the linear equation! This maybe is a program with some bugs.Welcome you to point out it and give me some advice to improve it. This my computer information and matlab version: Matlab version: 7.0.0.19200(R14) Processor Name: Intel(R) Core(TM)2 Duo CPU T6670 @ 2.20GHz Operating System: 5.1-2600-Service Pack 3