线性方程组的高斯消元法和列主消元法 输入：A=[1.1348 3.8326 1.1651 3.4017 0.5301 1.7875 2.5330 1.5435 3.4129 4.9317 8.7643 1.3142 1.2371 4.9998 10.6721 0.0147] b=[9.5342 6.3941 18.4231 16.9237] [X]=liezhu(A,b)-Linear Equations Gaussian Elimination Method and the m