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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Complex {
  5. private:
  6.     float real;
  7.     float imag;
  8.  
  9. public:
  10.     // Constructor
  11.     Complex(float r = 0, float i = 0) {
  12.         real = r;
  13.         imag = i;
  14.     }
  15.  
  16.     // Overload +
  17.     Complex operator + (const Complex& c) const {
  18.         return Complex(real + c.real, imag + c.imag);
  19.     }
  20.  
  21.     // Overload -
  22.     Complex operator - (const Complex& c) const {
  23.         return Complex(real - c.real, imag - c.imag);
  24.     }
  25.  
  26.     // Overload *
  27.     Complex operator * (const Complex& c) const {
  28.         float r = (real * c.real) - (imag * c.imag);
  29.         float i = (real * c.imag) + (imag * c.real);
  30.         return Complex(r, i);
  31.     }
  32.  
  33.     // Display function
  34.     void display() const {
  35.         cout << real;
  36.         if (imag >= 0)
  37.             cout << " + " << imag << "i" << endl;
  38.         else
  39.             cout << " - " << -imag << "i" << endl;
  40.     }
  41. };
  42.  
  43. int main() {
  44.     Complex c1(3.0, 2.0);  // First complex number: 3 + 2i
  45.     Complex c2(1.5, 4.5);  // Second complex number: 1.5 + 4.5i
  46.  
  47.     Complex sum = c1 + c2;
  48.     Complex diff = c1 - c2;
  49.     Complex prod = c1 * c2;
  50.  
  51.     cout << "First Complex Number: ";
  52.     c1.display();
  53.  
  54.     cout << "Second Complex Number: ";
  55.     c2.display();
  56.  
  57.     cout << "\nSum: ";
  58.     sum.display();
  59.  
  60.     cout << "Difference: ";
  61.     diff.display();
  62.  
  63.     cout << "Product: ";
  64.     prod.display();
  65.  
  66.     return 0;
  67. }
  68.  
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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First Complex Number: 3 + 2i
Second Complex Number: 1.5 + 4.5i

Sum: 4.5 + 6.5i
Difference: 1.5 - 2.5i
Product: -4.5 + 16.5i
https://ideone.com/GFJoZt
language:
C++ (gcc 8.3)
created:
11 days ago
visibility:
public

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