#include<iostream.h>
#include<conio.h>
#include<math.h>
void main()
{
clrscr();
float a,b,c,d,e,f;
cout<<"Enter the coefficients a,b,c of X in a quadratic equation:";
cin>>a>>b>>c;
d=sqrt((b*b)-(4*a*c));
if(d>0)
{
e=((-b+d)/2*a);
f=((-b-d)/2*a);
cout<<"First square root is:"<<e<<endl;
cout<<"Second square root is:"<<f<<endl;
}
else
{
cout<<"The two roots are not real"<<endl;
}
getch();
}
*********output Section***********
Enter the coefficients a,b,c of X in a quadratic equation
:1
-1
-2
First root is:2
Second root is:-1
Algorithm:
- Read A,B,C
- Set D = B2- 4*A*C
- If D > 0, then :
a)
Set E = - B + sqrt (D)/2*A
And F= - B - sqrt (D)/2*A
b)
Write: E, F
Else
Write: ‘NO REAL SOLUTION ‘
[End of If structure]
4. Exit