LU矩阵分解

LU矩阵分解的程序#include #include #define N 200 FILE *fp1,*fp2; void main() { int i,j,k,n; float temp; float a[N][N],b[N],x[N],y[N],L[N][N],U[N][N]; fp1=fopen("input3.txt","r"); //由文件读入数据 fp2=fopen("output3.txt","w"); //由文件输出结果 fscanf(fp1,"%d",&n);