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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. class Complex {
  6. private:
  7.     float real;
  8.     float imaginary;
  9.  
  10. public:
  11.     void set_values(float a, float b) {
  12.         real = a;
  13.         imaginary = b;
  14.     }
  15.  
  16.     // Single get() function using reference parameters
  17.     void get(float* r, float* i) {// float &r likhleo hoito 
  18.         *r = real;
  19.         *i = imaginary;
  20.     }
  21.  
  22.     void display() {
  23.         if (imaginary < 0) {
  24.             cout << real << "-" << abs(imaginary) << "i" << endl;
  25.         } else {
  26.             cout << real << "+" << imaginary << "i" << endl;
  27.         }
  28.     }
  29. };
  30.  
  31. class calculation {
  32. public:
  33.     Complex sum(Complex a, Complex b) {
  34.         Complex S;
  35.         float x1, y1, x2, y2;
  36.         a.get(&x1, &y1);
  37.         b.get(&x2, &y2);
  38.  
  39.         float x = x1 + x2;
  40.         float y = y1 + y2;
  41.         S.set_values(x, y);
  42.         return S;
  43.     }
  44.  
  45.     Complex difference(Complex a, Complex b) {
  46.         Complex D;
  47.         float x1, y1, x2, y2;
  48.         a.get(&x1, &y1);
  49.         b.get(&x2, &y2);
  50.  
  51.         float x = x1 - x2;
  52.         float y = y1 - y2;
  53.         D.set_values(x, y);
  54.         return D;
  55.     }
  56. };
  57.  
  58. int main() {
  59.     float a, b;
  60.  
  61.     cout << "Enter real and imaginary parts of first complex number: ";
  62.     cin >> a >> b;
  63.     Complex A, B, sum, diff;
  64.     A.set_values(a, b);
  65.  
  66.     cout << "Enter real and imaginary parts of second complex number: ";
  67.     cin >> a >> b;
  68.     B.set_values(a, b);
  69.  
  70.     calculation calc;
  71.     sum = calc.sum(A, B);
  72.     diff = calc.difference(A, B);
  73.  
  74.     cout << "\nSum = ";
  75.     sum.display();
  76.     cout << "Difference = ";
  77.     diff.display();
  78.  
  79.     return 0;
  80. }
  81.  
Success #stdin #stdout 0.01s 5172KB
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stdin
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Standard input is empty
stdout
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Enter real and imaginary parts of first complex number: Enter real and imaginary parts of second complex number: 
Sum = -3.77869e-08+1.48706e-41i
Difference = 0+0i
https://ideone.com/avV7zl
complex number_using get_pointer(problem 8)
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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