code. compile. run. debug. share.
Source Code
Language
#include <iostream>
#include <math.h>
using namespace std;
int main()
{
float a, b, c, d, x, x1, x2, re, im;
cout<<"a=?";cin>>a;
cout<<"b=?";cin>>b;
cout<<"c=?";cin>>c;
if(a==0) if(b==0) if(c==0)
cout<<endl<<"Aceasta nici macar nu e o ecuatie!"<<endl;
else cout<<endl<<"Imposibil!"<<endl;
else
{
cout<<endl<<"Este, de fapt, o ecuatie de gradul I"<<endl;
x=-c/b;
cout<<"Radacina este x="<<x<<endl;;
}
else
{
cout<<endl<<"Asta da! Este o ecuatie de gradul II"<<endl;
d=b*b-4*a*c;
if(d>0)
{
cout<<"Radacini reale distincte"<<endl;
x1=(-b-sqrt(d))/2/a;
x2=(-b+sqrt(d))/2/a;
cout<<"x1="<<x1<<endl;
cout<<"x2="<<x2<<endl;
}
else if(d==0)
{
cout<<"Radacini reale confundate"<<endl;
x=-b/2/a;
cout<<"x1=x2="<<x<<endl;
}
else
{
cout<<"Radacini complexe"<<endl;
re=-b/2/a;
im=-sqrt(-d)/2/a;
if(im<0)im=-im;
cout<<"x1="<<re<<" - "<<im<<"*i"<<endl;
cout<<"x2="<<re<<" + "<<im<<"*i"<<endl;
}
}
return 0;
}
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