C语言简单编程之一元二次方程求解

操作方法

（01）# include# includevoid main(void)

（02）void main(void){ double a,b,c,x1,x2; cout<<"input a,b,c:"; cin>>a>>b>>c; double s=b*b-4*a*c; if(s>=o)

（03）{ double sqrtVal=sqrt(s); x1=(-b+sqrtVal)/(2*a); x2=(-b-sqrtVal)/(2*a);cout<<"x1="<cout<<"x2="<}

（04）else cout<<"this question does not hava a real answer"<}