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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. const double sqrt5 = sqrt(5);
  5. const double phi = (1 + sqrt(5)) / 2;
  6. const double xi  = (1 - sqrt(5)) / 2;
  7.  
  8.  
  9. double fib(unsigned n){
  10. 	double eax = pow(phi, n);
  11. 	double ebx = pow(xi, n);
  12. 	return (eax - ebx) / sqrt5;
  13. }
  14.  
  15. int main(void) {
  16. 	int i;
  17. 	for(i = 0; i < 100; i++)
  18. 		printf("%.2f\n", fib(i));
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 2156KB
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stdin
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Standard input is empty
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5.00
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https://ideone.com/WTXmX5
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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