58. PROGRAM TO SOLVE THE QUADRATIC EQUATIONS

//WAP TO SOLVE THE QUADRATIC EQUATIONS
 #include<conio.h>
 #include<stdio.h>
 #include<math.h>
 void main()
 {
  float a,b,c,dis,alpha,beta;
  char ch;
  clrscr();
  printf("\nPROGRAM TO CALCULATE THE QUADRATIC EQUATION OF THE FORM:");
  printf("\n\n\n\n\t\taX^2+bX+c");
 do
 {
  printf("\n\nENTER THE NUMBER a=");
  scanf("%f",&a);
  printf("\nENTER THE NUMBER b=");
  scanf("%f",&b);
  printf("\nENTER THE NUMBER c=");
  scanf("%f",&c);
  dis=b*b-4*a*c;
  printf("\nDISCRIMINANT=%f",dis);
  if(dis>0)
  {
   printf("\n\nTHERE ARE TWO REAL AND DISTINCT ROOTS");
   alpha=((-b)+sqrt(dis))/2*a;
   beta=((-b)-sqrt(dis))/2*a;
   printf("\n\n1.ROOT:ALPHA=%f",alpha);
   printf("\n\n2.ROOT:BETA=%f",beta);
  }
  else
   if(dis==0)
    {
     printf("\n\nROOTS ARE REAL AND EQUAL");
     alpha=(-b)/2*a;
     beta=(-b)/2*a;
     printf("\n\n1.ROOT:ALPHA=%f",alpha);
     printf("\n\n2.ROOT:BETA=%f",beta);
    }
    else
     if(dis<0)
      printf("\n\nTHERE ARE NO REAL ROOTS");
      else
       printf("BYE!!BYE!!");
 fflush(stdin);
 printf("\n\nDO YOU WANT TO CONTINUE?");
 scanf("%c",&ch);
 }while(ch=='y'||ch=='Y');
 getch();
}
/**************************************************************************
    OUTPUT
 **************************************************************************
 PROGRAM TO CALCULATE THE QUADRATIC EQUATION OF THE FORM:

aX^2+bX+c

 ENTER THE NUMBER a=1

 ENTER THE NUMBER b=3

 ENTER THE NUMBER c=2

 DISCRIMINANT=1.000000

 THERE ARE TWO REAL AND DISTINCT ROOTS

 1.ROOT:ALPHA=-1.000000

 2.ROOT:BETA=-2.000000

 DO YOU WANT TO CONTINUE?y


 ENTER THE NUMBER a=1

 ENTER THE NUMBER b=4

 ENTER THE NUMBER c=6

 DISCRIMINANT=-8.000000

 THERE ARE NO REAL ROOTS

 DO YOU WANT TO CONTINUE?y


 ENTER THE NUMBER a=0

 ENTER THE NUMBER b=0

 ENTER THE NUMBER c=0

 DISCRIMINANT=0.000000

 ROOTS ARE REAL AND EQUAL

 1.ROOT:ALPHA=-0.000000

 2.ROOT:BETA=-0.000000

 DO YOU WANT TO CONTINUE?n
 */