Question

把你画出的求解二元一次方程组的程序框图转化为程序语句(高一必修3)

急急急

Answer 1

#include<stdio.h>
#include<math.h>
#include<stdlib.h>
int main()
{double a,b,c;
scanf("%lf%lf%lf",&a,&b,&c);
double delta,x1,x2;
delta = b*b - 4*a*c;
if(delta>0)
{ x1 = (-b+sqrt(delta))/(2*a);
x2 = (-b-sqrt(delta))/(2*a);
printf("两个解,x1=%f,x2=%f\n",x1,x2); }
else if(delta == 0)
{ x1 = (-b)/(2*a); x2=x1;
printf("唯一解,x1=x2=%f\n",x1,x2); }
else printf("无解\n");
system("pause");return 0;
}