Write a program to, as arguments, the co-efficient of a,b,c of the quadratic equation ax2+bx+c=0 and evaluates its roots such that both the roots will be available in the calling function.

   1:  #include<stdio.h>

   2:  #include<conio.h>

   3:  #include<math.h>

   4:  #include<stdlib.h>

   5:  void roots(float a,float b,float c,float *r1,float *r2);

   6:  void main()

   7:  {

   8:  float a,b,c,root1,root2;

   9:  printf("Enter the coefficient of a,b,c:\n");

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

  11:  roots(a,b,c,&root1,&root2);

  12:  printf("Roots of the equation are %.2f and %.2f\n",root1,root2);

  13:  getch();

  14:  }

  15:  void roots(float a,float b,float c,float *r1,float *r2)

  16:  {

  17:  float d;

  18:  d=b*b-4.0*a*c;

  19:  if(d<0)

  20:  {

  21:  printf("no real root\n");

  22:  getch();

  23:  exit(0);

  24:  }

  25:  else

  26:  *r1=(-b+sqrt(d))/(2.0*a);

  27:  *r2=(-b-sqrt(d))/(2.0*a);

  28:  }