摘要： void gauss(double a[3][3], double b[], int m, double x[]){ for (int i=0; i<m; i++) { float tmp = a[i][i]; int t; //选主元 for (int k=i+1; k<m; k++) { if (fabs(tmp) < fabs(a[k][i])) { t=k; tmp = a[k][i]; ... 阅读全文