This documentation is archived and is not being maintained.

Complex.UnaryNegation Operator

Returns the additive inverse of a specified complex number.

Namespace:  System.Numerics
Assembly:  System.Numerics (in System.Numerics.dll)

public static Complex operator -(
	Complex value


Type: System.Numerics.Complex
The value to negate.

Return Value

Type: System.Numerics.Complex
The result of the Real and Imaginary components of the value parameter multiplied by -1.

The UnaryNegation method defines the operation of the unary negation (additive inverse) operator for complex numbers. It enables code such as the following:

Complex c1 = new Complex(1.7, 3.9);
Complex c2 = -c1;

The resulting complex number produces a value of Zero 0 (zero) when it is added to the original complex number. Languages that do not support custom operators can call the Negate method instead.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.