Solution of quadratic equation C program

/*Solution of quadratic equation*/

#include<stdio.h>

#include<math.h>

void

main()

{

            float a,b,c,d,x1,x2,rp,imp;

            printf("enter the value of a,b,c");

            scanf("%f%f%f",&a,&b,&c);

            d=b*b-4.0*a*c;

            if (d>=0)

            {

                        printf("roots are real");

                        x1=(-b+sqrt(d))/(2.0*a);

                        x2=(-b-sqrt(d))/(2.0*a);

                        printf("\n x1= %f,x2= %f\n",x1,x2);

            }

            else

            {

                        printf("roots are complex");

            rp=-b*(2.0*a);

            imp=sqrt(abs(d))/(2.0*a);

            printf("first root = %f+ %fi\n",rp,imp);

            printf("second root= %f-%fi\n",rp,imp);

            }

}

/*Solution of quadratic equation */

#include<stdio.h>

#include<math.h>

void

main()

{

                float a,b,c,d,x1,x2,rp,imp;

                printf(" enter the value of a,b,c");

                scanf("%f%f%f",&a,&b,&c);

                d=(b*b)-(4.0*a*c);

                if(d>=0)

                {

                                printf("roots are real");

                                x1=(-b+sqrt(d))/(2.0*a);

                                x2=(b-sqrt(d))/(2.0*a);

                                printf("\n x1=%f,x2=%f\n",x1,x2);

                }

                else

                {

                                printf("roots are complex");

                                rp=-b/(2.0*a);

                                imp=sqrt(abs(d))/(2.0*a);

                                printf("1st root=%f+%fi\n",rp,imp);

                                printf("2nd root=%f-%fi\n",rp,imp);

                }

}

Result1:

enter the value of a,b,c2 3 1

roots are real

 x1=-0.500000,x2=0.500000

Press any key to continue

Result2:

enter the value of a,b,c2 4 2

roots are real

 x1=-1.000000,x2=1.000000

Press any key to continue

Result3:

enter the value of a,b,c2 3 5

roots are complex1st root=-0.750000+1.391941i

2nd root=-0.750000-1.391941i

Press any key to continue