lu分解是数值分析中的重要内容，在解线性方程组方面具有很重要的地位，所以彻底的掌握他具有很好的学习价值，通过程序实现算法　正好体现了计算机与自然科学的有机结合-numerical analysis is an important part of the solution of linear equations have a very important position, so thoroughly he has a good grasp of the value of learning through the program algorithm is embodied in the computer and an organic combination of science