#include <iostream.h>
#include <math.h>     /* This library contains the sqrt function */

/* This program computes the solutions to a quadratic equation of the form
 
   Ax^2 + Bx + C

   where the user inputs values for A, B, and C. It does so using the formula:
          _________
   -B +- VA^2 - 4AC
   ----------------
          2A
*/

main() {

/* We will need float values for most of these. */
float A, B, C, x;

/* Since this is a fairly complex program, we will include some detailed instructions
   on what will be input */

cout << "This program computes solutions to a quadratic equation of the form\n" 
     << "\tAx^2 + Bx + C\n"
     << "where you enter the values of A, B, and C.\n\n";

/* Prompt for input */

cout << "Enter value of A: ";
cin >> A;
cout << "Enter value of B: ";
cin >> B;
cout << "Enter value of C: ";
cin >> C;

/*  Compute and print first solution */

x = (-B + sqrt(B * B - 4 * A * C))/(2 * A);
cout << "One solution for x is " << x << "\n";

/*  Compute and print first solution */

x = (-B - sqrt(B * B - 4 * A * C))/(2 * A);
cout << "The other solution for x is " << x << "\n";

}