计算数学表达式△的值
#include<stdio.h>>
void main()
{
double a, b, c, x;
scanf("%lf%lf%lf", &a, &b, &c);
x = b*b - 4 * a*c;
printf("b*b-4*a*c=%lf\n", x);
}
计算数学表达式△的值
#include<stdio.h>>
void main()
{
double a, b, c, x;
scanf("%lf%lf%lf", &a, &b, &c);
x = b*b - 4 * a*c;
printf("b*b-4*a*c=%lf\n", x);
}