fork(1) download
copy 
  1. #include <iostream>
  2. #include <cmath>
  3. #include <iomanip>
  4. using namespace std;
  5.  
  6. long long fakultaet(long long x){
  7.     if(x < 0){
  8.         //Fehler
  9.         return -1;
  10.     }
  11.     if(x == 0 || x == 1){
  12.         return 1;
  13.     }
  14.     long long erg = 2;
  15.     for(long long i = 3; i <= x; i++)
  16.     {
  17.         erg *= i;
  18.     }
  19.     return erg;    
  20. }
  21.  
  22. long double ehoch(long double x){
  23.     long double erg = 0;
  24.     long long counter = 0;
  25.     long double epsilon = 0.00001;
  26.     long double next = pow(x,counter) / fakultaet(counter);
  27.     counter++;
  28.     while(epsilon < abs(next) && counter < 100){
  29.         erg += next;
  30.         next = pow(x,counter) / fakultaet(counter);
  31.         counter++;
  32.     }
  33.     return erg;
  34. }
  35.  
  36. int main() {
  37.     for (double x = 0; x < 10; x++)
  38. 	  cout << x << ": " << setprecision(10) << ehoch(x) << " <-> " << exp(x) << endl;
  39.  
  40. 	return 0;
  41. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
0: 1 <-> 1
1: 2.71827877 <-> 2.718281828
2: 7.389046016 <-> 7.389056099
3: 20.08553443 <-> 20.08553692
4: 54.59814722 <-> 54.59815003
5: inf <-> 148.4131591
6: inf <-> 403.4287935
7: inf <-> 1096.633158
8: inf <-> 2980.957987
9: inf <-> 8103.083928
https://ideone.com/U71Jff
language:
C++14 (gcc 8.3)
created:
6 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!