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Complex.Subtraction Operator

Subtracts a complex number from another complex number.

Namespace:  System.Numerics
Assemblies:   System.Runtime.Numerics (in System.Runtime.Numerics.dll)
  System.Numerics (in System.Numerics.dll)

public static Complex operator -(
	Complex left,
	Complex right


Type: System.Numerics.Complex

The value to subtract from (the minuend).

Type: System.Numerics.Complex

The value to subtract (the subtrahend).

Return Value

Type: System.Numerics.Complex
The result of subtracting right from left.

The Subtraction method defines the operation of the subtraction operator for complex numbers. It enables code such as the following:

System.Numerics.Complex c1 = new System.Numerics.Complex(6.7, -1.3);
System.Numerics.Complex c2 = new System.Numerics.Complex(1.4, 3.8);
System.Numerics.Complex result = c1 - c2;
Console.WriteLine("{0} - {1} = {2}", c1, c2, result);
// The example displays the following output: 
//       (6.7, -1.3); - (1.4, 3.8); = (5.3, -5.1)      

If the method call results in an overflow in either the real or imaginary component, the value of that component is either Double.PositiveInfinity or Double.NegativeInfinity.

The subtraction of a complex number, c + di, from another complex number, a + bi, takes the following form:

(a - c) + (b - d)i

Languages that do not support custom operators can call the Subtract method instead.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1
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