//------------------------------------------------------------------------------------------------------------------------------
//                                                                  Exercise 5
//                                                                  ----------
//
// General : The program will get the three coefficients and it will solve the equation if its possible.
//
// Input   : Three coefficients.
//
// Process : The program solves the equation according to the well known formula. In case that the equation cant be solved, the program will alert the user.
//
// Output  : Prints the equation and its sulotion.

//
//------------------------------------------------------------------------------------------------------------------------------
// Programmer: Ohad Ozcohen
// Date: 9.9.2016
//------------------------------------------------------------------------------------------------------------------------------

#include <stdio.h>
#include <math.h>
void main(void)
{
    float a,b,c;
    float delta;
    float root1, root2;
    printf("Please enter a: ");
    scanf_s("%f", &a);
    printf("Please enter b: ");
    scanf_s("%f", &b);
    printf("Please enter c: ");
    scanf_s("%f", &c);
    delta = b*b - 4 * a*c;
    if (delta > 0)
    {
        float test = sqrt(delta);
        // sqrt() function returns square root
        root1 = (-b + sqrt(delta)) / (2 * a);
        root2 = (-b - sqrt(delta)) / (2 * a);

        printf("root1 = %.2lf and root2 = %.2lf", root1, root2);
    }
    if (delta == 0)
    {
        root1 = root2 = -b / (2 * a);

        printf("root1 = root2 = %.2f;", root1);
    }
    if (delta<0)
    {
        printf("There is no solution to the equation");
    }

}