Double.IsNegativeInfinity Method (Double)

 

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

Parameters

d
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 code example illustrates the use of IsNegativeInfinity:

' This will return "True".
Console.Write("IsNegativeInfinity(-5.0 / 0) = ")
If Double.IsNegativeInfinity(-5 / 0) Then
    Console.WriteLine("True.")
Else
    Console.WriteLine("False.")
End If
If D > Double.MaxValue Then
    Console.WriteLine("Your number is bigger than a double.")
End If
' This will equal Infinity.
Console.WriteLine("10.0 minus NegativeInfinity equals " + (10 - Double.NegativeInfinity).ToString() + ".")

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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