Double.IsNegativeInfinity Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Returns a value indicating whether the specified number evaluates to negative infinity.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public Shared Function IsNegativeInfinity ( _
d As Double _
) As Boolean
public static bool IsNegativeInfinity(
double d
)
Parameters
- d
Type: System.Double
A double-precision floating-point number.
Return Value
Type: System.Boolean
true if d evaluates to NegativeInfinity; otherwise, false.
Examples
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
Else
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
// This will return "true".
outputBlock.Text += String.Format("IsNegativeInfinity(-5.0 / 0) == {0}.", Double.IsNegativeInfinity(-5.0 / 0) ? "true" : "false") + "\n";
...
if (d > Double.MaxValue)
{
outputBlock.Text += "Your number is bigger than a double." + "\n";
}
...
// This will equal Infinity.
outputBlock.Text += String.Format("10.0 minus NegativeInfinity equals {0}.", (10.0 - Double.NegativeInfinity).ToString()) + "\n";
Version Information
Silverlight
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
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
See Also