Double.IsNegativeInfinity Method

Returns a value indicating whether the specified number evaluates to negative infinity.

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

Public Shared Function IsNegativeInfinity ( _
	d As Double _
) As Boolean


Type: System.Double
A double-precision floating-point number.

Return Value

Type: System.Boolean
true if d evaluates to NegativeInfinity; otherwise, false.

Floating-point operations return NegativeInfinity to signal an overflow condition.

The following example illustrates the use of IsNegativeInfinity:

' This will return "True".
outputBlock.Text &= "IsNegativeInfinity(-5.0 / 0) = "
If Double.IsNegativeInfinity(-5 / 0) Then
   outputBlock.Text &= "True." & vbCrLf
   outputBlock.Text &= "False." & vbCrLf
End If


If D > Double.MaxValue Then
   outputBlock.Text &= "Your number is bigger than a double." & vbCrLf
End If


' This will equal Infinity.
outputBlock.Text &= "10.0 minus NegativeInfinity equals " + (10 - Double.NegativeInfinity).ToString() + "." & vbCrLf


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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