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BigInteger.IsOne Property

.NET Framework 4

Indicates whether the value of the current BigInteger object is BigInteger.One.

Namespace:  System.Numerics
Assembly:  System.Numerics (in System.Numerics.dll)
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public bool IsOne { get; }

Property Value

Type: System.Boolean
true if the value of the BigInteger object is BigInteger.One; otherwise, false.

This property offers significantly better performance than other comparisons with one, such as thisBigInteger.Equals(BigInteger.One).

.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.
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Sample Using PowerShell 
<#
.SYNOPSIS
    This script displays dynamic properties of a BigInteger 
.DESCRIPTION
    This script demonstrates the properties on an instance of BigInteger
.NOTES
    File Name  : Get-BigIntegerProperties.ps1
    Author     : Thomas Lee - tfl@psp.co.uk
    Requires   : PowerShell Version 2.0
                 .NET Framework 4    
.LINK
    This script posted to:
        http://www.pshscripts.blogspot.com
    MSDN Sample posted at:
        http://msdn.microsoft.com/en-us/library/system.numerics.biginteger_properties.aspx
.EXAMPLE
    PSH [c:\foo]: .\Get-BigIntegerProperties.ps1
    Big Integer from 4096:

    IsPowerOfTwo : True
    IsZero       : False
    IsOne        : False
    IsEven       : True
    Sign         : 1
#>

# Add the .NET Version 4 System.Numerics.Dll
Add-Type -Path "C:\Windows\Microsoft.NET\Framework\v4.0.30319\System.Numerics.dll"

# Create a big integer then display its key properties
$BigInt = New-object System.Numerics.BigInteger 4096
"Big Integer from 4096:"
$BigIntFromDouble | fl *
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