a006.
一元二次方程式
| From: [183.32.186.192] |
發表日期
:
2012-10-02 10:40
#include<stdlib.h>
#include<stdio.h>
#include<math.h>
int main(void)
{ float a,b,c;
float x1,x2;
while(scanf("%d %d %d",&a,&b,&c))
{
x1=(-b+sqrt(b*b-4*a*c))/2*a;
x2=(-b-sqrt(b*b-4*a*c))/2*a;
if((b*b-4*a*c)>0)
printf("Two different roots x1=%.0f , x2=%.0f \n",x1,x2);
if((b*b-4*a*c)==0)
printf("Two same roots x=%.0f \n",x1);
if((b*b-4*a*c)<0)
printf("No real root \n");
}
return 0;
}