数值分析中，LU分解法，按比例主元消元法，列主消元法，高斯消元法，追赶法对一些数值方程的求解作用，简化人工求解过程，提高效率。还有一些简单例题的编程算法-Numerical analysis, the LU decomposition method, principal component elimination method in proportion, column main elimination method, gauss elimination method, method of chasing some numerical equation solving, simplifying the artificial solving process, improve efficiency. There are some simple examples of programming algorithm