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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main(int argc, char const *argv[]) {
  5.   // number of iterations = k.
  6.   int k = 100;
  7.   long double sum = 0;
  8.   for (int n = 0; n < k; n++)
  9.     sum += 1 / pow(2, n);
  10.   printf("series sum = %Lf", sum);
  11.  
  12.   return 0;
  13. }
Success #stdin #stdout 0.01s 5524KB
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stdin
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Standard input is empty
stdout
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series sum = 2.000000
https://ideone.com/gbe4Xm
language:
C (gcc 8.3)
created:
3 years ago
visibility:
secret

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