#include <stdio.h>
#include <math.h>
int main()
{
double m,n,a,b,c,d;
printf("请输入a,b,c的值：");
scanf("%lf%lf%lf",&a,&b,&c);
d=b*b-4*a*c;
if (d>0){
m=(-b+sqrt(d))/(2*a);
n=(-b-sqrt(d))/(2*a);
printf("有两个不相等的根%f %f\n",m,n);
}
else if(d==0){
printf("有两个相等的根x=%f\n",-b/(2*a));
}
else{
printf("no real root\n");
}
return 0;
}
Processed:
0.013, SQL:
8
