高斯消元法，可以随意改变方程组的行列数，用数组来存储矩阵的系数-Gaussian elimination, can be changed at the ranks of the number of equations, using an array to store the coefficient matrix

数值分析实验报告，包括阿当姆斯方法解常微分方程和高斯列主元消去法解线性方程组-Numerical analysis of experimental reports