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Editorial note
Important
The Windows PowerShell Language Specification 3.0 was published in December 2012 and is based on Windows PowerShell 3.0. This specification does not reflect the current state of PowerShell. There is no plan to update this documentation to reflect the current state. This documentation is presented here for historical reference.
The specification document is available as a Microsoft Word document from the Microsoft Download Center at: https://www.microsoft.com/download/details.aspx?id=36389 That Word document has been converted for presentation here on Microsoft Learn. During conversion, some editorial changes have been made to accommodate formatting for the Docs platform. Some typos and minor errors have been corrected.
ANSI/IEEE 754−2008, Binary floating-point arithmetic for microprocessor systems.
ECMA-334, C# Language Specification, 4th edition (June 2006), https://www.ecma-international.org/publications-and-standards/standards/ecma-334/. [This Ecma publication is also approved as ISO/IEC 23270:2006.]
The Open Group Base Specifications: Pattern Matching, IEEE Std 1003.1, 2004 Edition. http://www.opengroup.org/onlinepubs/000095399/utilities/xcu_chap02.html#tag_02_13_01
The Open Group Base Specifications: Regular Expressions, IEEE Std 1003.1, 2004 Edition. http://www.opengroup.org/onlinepubs/000095399/basedefs/xbd_chap09.html.
Ecma Technical Report TR/84, Common Language Infrastructure (CLI) - Information Derived from Partition IV XML File, 4th edition (June 2006), https://www.ecma-international.org/publications-and-standards/technical-reports/ecma-tr-84/. This TR was also published as ISO/IEC TR 23272:2006.
ISO 639-1, Codes for the representation of names of languages - Part 1: Alpha-2 code.
ISO 3166-1, Codes for the representation of names of countries and their subdivisions - Part 1: Country codes.
ISO/IEC 10646-1/AMD1:1996, Amendment 1 to ISO/IEC 10646-1:1993, Transformation Format for 16 planes of group 00 (UTF-16).
The Unicode Standard, Edition 5.2. The Unicode Consortium, http://www.unicode.org/standard/standard.html.
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