# Why is this not working?

• 04-22-2003
Nikisha
Why is this not working?
i wrote this program..sweat all over it...but its not working..can any one help me figure my mistake?

Code:

```#include <string> #include <iostream> #include <cmath> using namespace std; int QuadRoots ( double a, double b, double c, double &r1, double &r2); int main() {     int result = 0;     double a, b, c;     double r1,r2;                 cout << "Quadratic coefficients: ";     cin  >> a  >> b  >> c;             result = QuadRoots(a, b, c, r1, r2);     if (result == 0)     {         cout << "Roots: " << "r1= " << " " << "r2= "                           << endl;     }     else if(result == 1)     {         cout << "One of the root is negative";     }     else if(result == 2)     {         cout << "One of the root is 0";     }     return 0; } int QuadRoots ( double a, double b, double c, double &r1, double &r2) {     int result = 0;         if(a == 0)     {         result = 2;     }     if((b*b - 4*a*c) < 0)     {         result = 1;     }     if ((a != 0) && ((b*b - 4*a*c) > 0))     {         double radical = sqrt(b*b - 4*a*c);         &r1 = (-b + radical) / (2*a);         &r2 = (-b - radical) / (2*a);         result = 0;     }     return result; }```
• 04-22-2003
XSquared
What do you mean it isn't working? Is it producing a compile error?
• 04-22-2003
Jamsan
Code:

```&r1 = (-b + radical) / (2*a); &r2 = (-b - radical) / (2*a);```
you already passed the address when calling the function, so no need to set that equal to the address of the variable...take out the &'s and it should work fine.
• 04-22-2003
Nikisha
ok so when i take the & out..the value of r1 n r2 does not appear!
• 04-22-2003
Jamsan
Code:

```    if (result == 0)     {         cout << "Roots: " << "r1= " << " " << "r2= "                           << endl;     }```
be nice if you actually outputed the variables ;)

edit: in case you dont know what i mean ....

Code:

```    if (result == 0)     {         cout << "Roots: " << "r1= " << r1 << " " << "r2= "                           << r2 << endl;     }```
• 04-22-2003
Nikisha
thanx..it compiles now