Program to find the roots of a quadratic equation.| Using C language| C Program series 12|

👨‍💻Program to find the roots of a quadratic equation.

Code:

    //Program to find the roots of a quadratic equation.

   

    #include<stdio.h>

    #include<math.h>

    main()

    {

        printf("Program to find the roots of a quadratic equation.\n");

        printf("NOTE:equation like a(x^2) + b(x) + c = 0 Where a,b,c are coeffiecients.\n\n");

       

        float a,b,c,D,R1,R2;

        /*

        Where,

        a = Coefficient of x^2

        b = Coefficient of x

        c = Constant

        D = Discriminant

        R1= First Root

        R2= Second Root

        */

        printf("Enter value of a:");

        scanf("%f",&a);

        printf("Enter value of b:");

        scanf("%f",&b);

        printf("Enter value of c:");

        scanf("%f",&c);

       

        D=(b*b)-(4*a*c);

       

        if(D>=0)

        {

            R1=((-1*b)+(sqrt(D)))/(2*a);

            R2=((-1*b)-(sqrt(D)))/(2*a);

            printf("\nRoots are Real.\n");

            printf("R1 = %f \nR2 = %f\n",R1,R2);

        }

        else

        {

            printf("\nRoots are imeginary.\n");

            printf("R1= ((%f) + i(%f)^(1/2)) / (%f)\n\n",-1*b,-1*D,2*a);

            printf("R2= ((%f) - i(%f)^(1/2)) / (%f)\n",-1*b,-1*D,2*a);

            //Here,'i' represents iota, where i = (square root of -1)

        }

    }

     

Output:

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