问题描述:
求二次方程的解
#include"stdio.h"
#include"math.h"
void main()
{
float a,b,c,p,q,x1,x2;
scanf("%f,%f,%f\n",&a,&b,&c);
p=sqrt(b*b-4*a*c)/2;
q=-b/2;
x1=p+q;
x2=p-q;
printf("x1=%1.1f,x2=%1.1f\n",x1,x2);
}
#include"stdio.h"
#include"math.h"
void main()
{
float a,b,c,p,q,x1,x2;
scanf("%f,%f,%f\n",&a,&b,&c);
p=sqrt(b*b-4*a*c)/2;
q=-b/2;
x1=p+q;
x2=p-q;
printf("x1=%1.1f,x2=%1.1f\n",x1,x2);
}
问题解答:
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