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 ch