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  1. # include<stdio.h>
  2. # include<math.h>
  3.  
  4. int main () {
  5.     float a,b,c,r1,r2,d;
  6.  
  7.     printf ("Enter the values of a b c: ");
  8.     scanf (" %f %f %f", &a, &b, &c);
  9.  
  10.     d= b*b - 4*a*c;
  11.  
  12.     if (d>0) {
  13.         r1 = -b+sqrt (d) / (2*a);
  14.         r2 = -b-sqrt (d) / (2*a);
  15.         printf ("The real roots = %f %f", r1, r2);
  16.     }
  17.     else if (d==0) {
  18.         r1 = -b/(2*a);
  19.         r2 = -b/(2*a);
  20.         printf ("Roots are equal =%f %f", r1, r2);
  21.     }
  22.     else
  23.         printf("Roots are imaginary");
  24.  
  25.     return 0;
  26. }
Success #stdin #stdout 0s 5276KB
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Enter the values of a b c: Roots are imaginary
https://ideone.com/y3z30Q
roots of a qudratic equation
language:
C (gcc 8.3)
created:
237 days ago
visibility:
public

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