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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. double solve(double a,double b,double c){
  5. 	if(a==0){
  6. 		return -c/b;
  7. 	}
  8. 	if(b*b-4*a*c<0){
  9. 		printf("Complex\n");
  10. 		return 0;
  11. 	}
  12. 	return (-b+sqrt(b*b-4*a*c))/2/a;
  13. }
  14.  
  15. int main(void){
  16. 	double a,b,c,x;
  17. 	a=1.0;
  18. 	b=3.0;
  19. 	c=2.0;
  20. 	x=solve(a,b,c);
  21. 	printf("x=%lf\n",x);
  22. 	return 0;
  23. }
Success #stdin #stdout 0.02s 1676KB
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stdin
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Standard input is empty
stdout
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x=-1.000000
https://ideone.com/jJk2H
language:
C (gcc 8.3)
created:
11 years ago
visibility:
secret

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