Divide-BigInteger.ps1

1. <# 
2. .SYNOPSIS 
3.     This script divides big integers using .NET Framework. 
4. .DESCRIPTION 
5.     This script reimplements an MSDN Sample script using powershell. The 
6.     script creates a dividor and an arry of dividends, then performs  
7.     division operations several ways. 
8. .NOTES 
9.     File Name  : Divide-BigInteger.ps1 
10.     Author     : Thomas Lee - tfl@psp.co.uk 
11.     Requires   : PowerShell Version 2.0 
12.                  .NET Framework 4.0 or higher 
13. .LINK 
14.     This script posted to: 
15.         http://www.pshscripts.blogspot.com 
16.     MSDN Sample posted at: 
17.         http://msdn.microsoft.com/en-us/library/system.numerics.biginteger.divide.aspx 
18. .EXAMPLE 
19.     PSH [C:\foo]: . 'C:\Users\tfl\AppData\Local\Temp\Untitled7.ps1' 
20.     Dividend: 680,564,693,277,057,719,623,408,366,969,033,850,880 
21.     Divisor:  85,070,591,730,234,615,847,396,907,784,232,501,249 
22.     Results: 
23.        Using Divide method:     7 
24.        Using Division operator: 7 
25.        Using DivRem method:     7, remainder 85,070,551,165,415,408,691,630,012,479,406,342,137 
26.  
27.     Dividend: 90,612,345,123,875,509,091,827,560,007,100,099 
28.     Divisor:  85,070,591,730,234,615,847,396,907,784,232,501,249 
29.     Results: 
30.        Using Divide method:     0 
31.        Using Division operator: 0 
32.        Using DivRem method:     0, remainder 90,612,345,123,875,509,091,827,560,007,100,099 
33.      
34.     Dividend: 1 
35.     Divisor:  85,070,591,730,234,615,847,396,907,784,232,501,249 
36.     Results: 
37.        Using Divide method:     0 
38.        Using Division operator: 0 
39.        Using DivRem method:     0, remainder 1 
40.      
41.     Dividend: 19,807,040,619,342,712,359,383,728,129 
42.     Divisor:  85,070,591,730,234,615,847,396,907,784,232,501,249 
43.     Results: 
44.        Using Divide method:     0 
45.        Using Division operator: 0 
46.        Using DivRem method:     0, remainder 19,807,040,619,342,712,359,383,728,129 
47.   
48.     Dividend: 85,070,591,730,234,615,847,396,907,784,232,501,250 
49.     Divisor:  85,070,591,730,234,615,847,396,907,784,232,501,249 
50.     Results:  
51.        Using Divide method:     1 
52.        Using Division operator: 1 
53.        Using DivRem method:     1, remainder 1 
54.   
55. #> 
56.  
57. # Add namespace 
58. $r = [system.Reflection.Assembly]::LoadWithPartialName("System.Numerics") 
59.  
60. #Create a big integer divisor and an array of dividends 
61. $divisor = [system.numerics.BigInteger]::pow([Int64]::MaxValue, 2) 
62. $dividends = @() 
63. $dividends += [system.numerics.BigInteger]::Multiply(([system.numerics.BigInteger] [system.Single]::MaxValue), 2) 
64. $dividends += [system.numerics.BigInteger]::Parse("90612345123875509091827560007100099")  
65. $dividends += [system.numerics.BigInteger]::One 
66. $dividends += [system.numerics.BigInteger]::Multiply([Int32]::MaxValue, [Int64]::MaxValue) 
67. $dividends += $divisor + [system.numerics.BigInteger]::One  
68.   
69. #Divide each dividend by divisor in three different ways 
70. foreach ($dividend in $dividends) { 
71.     "Dividend: {0:N0}" -f $dividend 
72.     "Divisor:  {0:N0}" -f $divisor 
73.     "Results:" 
74.     "   Using Divide method:     {0:N0}" -f  [system.Numerics.BigInteger]::Divide($dividend, $divisor) 
75.     "   Using Division operator: {0:N0}" -f ($dividend/$divisor) 
76.     $remainder = [system.Numerics.BigInteger]::Zero 
77.     $quotient = [system.numerics.BigInteger]::DivRem($dividend, $divisor, [ref] $remainder) 
78.     "   Using DivRem method:     {0:N0}, remainder {1:N0}" -f $quotient, $remainder 
79.     "" 
80. }         

Technorati Tags: PowerShell,Code,scripts. System.Numerics.BigInteger

Get-MultiplyBigInteger.ps1

1. <# 
2. .SYNOPSIS 
3.     This script re-implements this MSDN Sample of  
4.     multiplying a big integer. 
5. .DESCRIPTION 
6.     This script first tries and fails to multiple a pair of large integers. The 
7.     script catches the error and then used BigInteger.Multiply to multiply  
8.     the two big itegers. 
9. .NOTES 
10.     File Name  : Get-MultiplyBigInteger.ps1 
11.     Author     : Thomas Lee - tfl@psp.co.uk 
12.     Requires   : PowerShell Version 2.0 
13. .LINK 
14.     This script posted to: 
15.         http://www.pshscripts.blogspot.com 
16.     MSDN Sample posted at: 
17.         http://msdn.microsoft.com/en-us/library/system.numerics.biginteger.multiply.aspx 
18. .EXAMPLE 
19.     PSH [C:\foo]: .Get-MultiplyBigInteger.ps1 
20.     Too big for long, try biginteger 
21.     12,193,263,111,263,526,900 
22. #> 
23. # Add System.Numerics namespace 
24. $r=[system.Reflection.Assembly]::LoadWithPartialName("System.Numerics") 
25.  
26. # Two big numbers 
27. $number1 = 1234567890 
28. $number2 = 9876543210 
29.  
30. # Try normal [long] then catch error and do biginteger 
31. try 
32. { 
33.    [long] $product = $number1 * $number2 
34. } 
35. catch  
36. {  "Too big for long, try biginteger" 
37.    $product = New-Object System.Numerics.BigInteger 
38.    $product = [System.Numerics.BigInteger]::Multiply($number1, $number2) 
39.    $product.ToString("N0") 
40. }    

Technorati Tags: PowerShell,Code,Script,System.Numerics.BigInteger

Get-BigIntegerProperties.ps1

1. <# 
2. .SYNOPSIS 
3.     This script displays dynamic properties of a BigInteger  
4. .DESCRIPTION 
5.     This script demonstates the properties on an instance of BigInteger 
6. .NOTES 
7.     File Name  : Get-BigIntegerProperties.ps1 
8.     Author     : Thomas Lee - tfl@psp.co.uk 
9.     Requires   : PowerShell Version 2.0 
10.                  .NET Framework 4    
11. .LINK 
12.     This script posted to: 
13.         http://www.pshscripts.blogspot.com 
14.     MSDN Sample posted at: 
15.         http://msdn.microsoft.com/en-us/library/system.numerics.biginteger_properties.aspx 
16. .EXAMPLE 
17.     PSH [c:\foo]: .\Get-BigIntegerProperties.ps1 
18.     Big Integer from 4096: 
19.  
20.     IsPowerOfTwo : True 
21.     IsZero       : False 
22.     IsOne        : False 
23.     IsEven       : True 
24.     Sign         : 1 
25. #> 
26.  
27. # Add the .NET Version 4 System.Numerics.DLL 
28. Add-Type -Path "C:\Windows\Microsoft.NET\Framework\v4.0.30319\System.Numerics.dll" 
29.  
30. # Create a big integer then display it's key properties 
31. $BigInt = New-object System.Numerics.BigInteger 4096 
32. "Big Integer from 4096:" 
33. $BigInt | fl * 

Technorati Tags: System.Numerics,PowerShell,Script,BigInteger

New-BigInteger.ps1

1. <# 
2. .SYNOPSIS 
3.     This script creates and displays a BigInteger.  
4. .DESCRIPTION 
5.     This script is a rewrite of an MSDN sample. 
6. .NOTES 
7.     File Name  : New-BigInteger.ps1 
8.     Author     : Thomas Lee - tfl@psp.co.uk 
9.     Requires   : PowerShell Version 2.0 
10.                  .NET Framework 4    
11. .LINK 
12.     This script posted to: 
13.         http://pshscripts.blogspot.com/2010/07/new-bigintegerps1.html 
14.     MSDN Sample posted at: 
15.         http://msdn.microsoft.com/en-us/library/system.numerics.biginteger.aspx  
16. .EXAMPLE 
17.     PSH [c:\foo]: .\Get-BigInteger.ps1 
18.     Big Integer from 179032.6541: 
19.     179,032 
20.     Big Integer from 1234934157136952: 
21.     1,234,934,157,136,952 
22. #> 
23.  
24. # Add the .NET Version 4 System.Numerics.DLL 
25. Add-Type -Path "C:\Windows\Microsoft.NET\Framework\v4.0.30319\System.Numerics.dll" 
26.  
27. # Create first big integer then display it nicely 
28. $BigIntFromDouble = New-Object System.Numerics.BigInteger 179032.6541 
29. "Big Integer from 179032.6541:" 
30. $BigIntFromDouble.ToString("N0") 
31.  
32. #Create second big integer then display it nicely 
33. $BigIntFromInt64 = New-object System.Numerics.BigInteger 1234934157136952 
34. "Big Integer from 1234934157136952:" 
35. $Bigintfromint64.tostring("N0") 

Technorati Tags: PowerShell,Script,System.Numerics,BigInteger