Complex Numbers in C#

To work WITH and display complex numbers in C#, you need to check for real and imaginary values.

A complex number like 7+5i is formed up of two parts, a real part 7, and an imaginary part 5. Here, the imaginary part is the multiple of i.

To display complete numbers, use the −

public struct Complex

To add both the complex numbers, you need to add the real and imaginary part −

public static Complex operator +(Complex one, Complex two) {
   return new Complex(one.real + two.real, one.imaginary + two.imaginary);
}

You can try to run the following code to work with complex numbers in C#.

Example

 Live Demo

using System;
public struct Complex {
   public int real;
   public int imaginary;
   public Complex(int real, int imaginary) {
      this.real = real;
      this.imaginary = imaginary;
   }
   public static Complex operator +(Complex one, Complex two) {
      return new Complex(one.real + two.real, one.imaginary + two.imaginary);
   }
   public override string ToString() {
      return (String.Format("{0} + {1}i", real, imaginary));
   }
}
class Demo {
   static void Main() {
      Complex val1 = new Complex(7, 1);
      Complex val2 = new Complex(2, 6);
      // Add both of them
      Complex res = val1 + val2;
      Console.WriteLine("First: {0}", val1);
      Console.WriteLine("Second: {0}", val2);
      // display the result
      Console.WriteLine("Result (Sum): {0}", res);
      Console.ReadLine();
   }
}

Output

First: 7 + 1i
Second: 2 + 6i
Result (Sum): 9 + 7i