fork download
copy 
  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. double func(double x) {
  5.     return x * sin(x / 2.0);
  6. }
  7.  
  8. int main() {
  9.     int n = 10000;
  10.     double b = 3.1415926;
  11.     double h = b / n;
  12.     double s = 0.0;
  13.  
  14. 	for (int _ = 0; _ < 1000; _++) {
  15. 		s = 0.0;
  16. 	    for (int i = 0; i < n; i++)
  17. 	        s += func(h * i);
  18. 	}
  19.  
  20.     printf("%lf\n", s * h);
  21. }
Success #stdin #stdout 0.19s 5280KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
3.999506
https://ideone.com/tmED0x
language:
C (gcc 8.3)
created:
12 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!