最近没事做,就潜心在研究软件编程,搞了几天还算是有点收获吧,今天用C++编写了一个一元二次方程的计算器,算是闲得无聊的产品吧!!哈哈,废话不多说,上代码(代码经过本人测试切实可用):
# include<stdio.h>
# include<math.h>
# include<windows.h>
int main(void)
{
int a,b,c;
double x1;
double x2;
double delta;
printf(“请输入一元二次方程的a,b,c三个参数的值并以空格隔开:n”);
scanf(“%d %d %d”,&a,&b,&c);
delta = b*b – 4*a*c;
if(delta > 0)
{
x1 = (-b + sqrt(delta)) / (2*a);
x2 = (-b – sqrt(delta)) / (2*a);
printf(“该一元二次方程有两个解,x1 = %f,x2 = %fn”,x1,x2);
}
else if(delta == 0)
{
x1 = (-b) / (2*a);
x2 = x1;
printf(“该一元二次方程有唯一一个解,x1 = x2 = %f”,x1);
}
else
{
printf(“该一元二次方程无解!n”);
}
system(“pause”);
return 0;
}