fork download
copy 
  1. #include <stdio.h>
  2.  
  3. float power(float,int);
  4. float ser(float,int);
  5. int fact(int);
  6.  
  7. int main()
  8. {	
  9. float x,res;
  10. 	int n;
  11.  
  12. printf("Enter no of steps and x");
  13. 	scanf("%d %f",&n,&x);
  14. 	res = ser(x,n);
  15. 	printf("The result is %f\n",res);
  16. }
  17.  
  18. float ser(float x,int n)
  19. {	
  20. 	float pw,fc,res=0;
  21. 	int i,j;
  22. 	for(i=1,j=1;i<=n;i++,j=j+2)
  23. 	{
  24. 		pw = power(x,j);
  25. 		fc = fact(j);
  26. 		if(i%2!=0)
  27. 			res = res + pw/fc;
  28. 		else
  29. 			res = res - pw/fc;
  30. 	}
  31. 	return res;
  32. }
  33.  
  34. float power(float b,int p)
  35. {	
  36. int i;
  37. float res=1;
  38. 	for(i=1;i<=p;i++)
  39. 		res=res*b;
  40. 	return res;
  41. }
  42.  
  43. int fact(int n)
  44. {
  45. 	int  i, res;
  46. 	for (res=1,i=1 ; i<=n ;i++)
  47. 		res  = res * i;
  48. 	return res;
  49. }
  50.  
Success #stdin #stdout 0s 9424KB
comments (?)
stdin
copy 
5
2
stdout
copy 
Enter no of steps and xThe result is 0.909347
https://ideone.com/ws4gCS
language:
C (gcc 8.3)
created:
5 years 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!