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  1. #include <iostream>
  2. #include <cmath>
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     double a = 0.0;
  9.     double b = 1.57;
  10.     int n = 10;
  11.  
  12.     double h = (b - a) / n;
  13.     double S = 0.0;
  14.  
  15.     S += sin(a) + sin(b);
  16.  
  17.     for (int i = 1; i < n; i++)
  18.     {
  19.         double x = a + i * h;
  20.         S += 2 * sin(x);
  21.     }
  22.  
  23.     S *= h / 2;
  24.  
  25.     cout << "Przyblizona wartosc pola (metoda trapezow) S = " << S << endl;
  26.  
  27.     return 0;
  28. }
Success #stdin #stdout 0.01s 5280KB
comments (?)
stdin 
Standard input is empty
stdout 
Przyblizona wartosc pola (metoda trapezow) S = 0.99715
https://ideone.com/avMZ86
language:
C++ (gcc 8.3)
created:
11 hours ago
visibility:
public

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