高斯列主消元法解n乘n线性方程组.txt

#include<stdio.h>
#include<math.h>
#include<conio.h>                             /*对应getch()*/
#include <stdlib.h>
#define NUMBER 20
#define Esc   0x1b
#define Enter 0x0d

float A[NUMBER][NUMBER+1] ,ark;
int flag,n;
void exchange(int r,int k);
float max(int k);
void message();

void main()
{
   float x[NUMBER];                            /*存放方程解*/
   int r,k,i,j;
   char celect;
   system("cls");
   printf("\n\n用Gauss列主元消元法解线性方程组");
   printf("\n\n请按Enter开始解方程组.");

   celect=getch();                            /*从键盘获取指示*/
   if(celect==Esc)                            /*按Esc直接退出程序*/
     exit(0);


   printf("\n\n 输入方程组的维数：n=");
   scanf("%d",&n);