C++ Program to calculate and print the roots of a quadratic equation [DEVCPP/GCC]

PROGRAM

//Program to calculate and print the roots of a quadratic equation!

#include<iostream>
#include<math.h>

using namespace std;

int main()
{
float a,b,c, delta,root1,root2;

cout<<"ENTER three numbers a, b and c of ax^2+bx+c:\n";
cin>>a>>b>>c;

if(!a)
cout<<"VALUE CANNOT BE ZERO"<<"\nABORTING!!!...\n";
else
{
delta= (b*b) - (4 * a * c);

if(delta>0)
{
root1= (-b + sqrt(delta))/(2*a);
root2= (-b - sqrt(delta))/(2*a);
cout<<"ROOTS ARE REAL AND UNEQUAL:\n";
cout<<"Root1="<<root1;
cout<<"\nRoot2="<<root2;
}
else if(delta==0)
{
root1= -b/(2*a);
cout<<"ROOTS ARE REAL AND EQUAL:\n";
cout<<"Root1="<<root1;
cout<<"Root2="<<root1;
}
else
{
cout<<"ROOTS ARE COMPLEX AND IMAGINARY \n";
}
}
return 0;
}

OUTPUT

Author : Shikha Rajput

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