marți, 4 decembrie 2012

Ecuatia de gradul 2

//ecuatia de gradul 2
#include<conio.h>
#include<iostream.h>
#include<math.h>
int main()
{float a,b,c,d,X1,X2;
cout<<"aX^2+bX+c=0"<<endl;
cout<<"Introduceti valori lui a,b si c: "<<endl;
cout<<"a= ";cin>>a;
cout<<"b= ";cin>>b;
cout<<"c= ";cin>>c;
d=pow(b,2)-4*a*c;
if(d>=0)
{X1=(-b+sqrt(d))/2*a;
X2=(-b-sqrt(d))/2*a;
cout<<"X1= "<<X1<<endl<<"X2= "<<X2;
}
else
{cout<<"X1="<<-b/2*a<<"+i"<<sqrt(d)/2*a<<endl;
cout<<"X2="<<-b/2*a<<"-i"<<sqrt(d)/2*a<<endl;
cout<<"X1 , X2 APARTINE LUI C(numere complexe)";
}
getche();
}

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