This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.
This document is a W3C First Public Working Draft produced by the W3C Math Working Group as part of the W3C Math Activity.
Publication as a Working Draft does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.
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This document was produced by a group operating under the 5 February 2004 W3C Patent Policy. W3C maintains a public list of any patent disclosures made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) must disclose the information in accordance with section 6 of the W3C Patent Policy.
It is hoped that the entity sets defined by this specification may form the basis of an update to [ISO9573-13-1991], however pressure of other commitments has currently prevented this document being processed by the relevant ISO committee, thus the entity sets are being presented with Formal Public identifiers of the form -//W3C//... rather than ISO.... It is hoped that an update to TR 9573-13 may be made later. (The present version of TR 9573-13 defines the sets of names, but does not give mappings to Unicode.)
Notation and symbols have proved very important for scientific documents, especially in mathematics. Mathematics has grown in part because its notation continually changes toward being succinct and suggestive. There have been many new signs developed for use in mathematical notation, and mathematicians have not held back from making use of many symbols originally introduced elsewhere. The result is that mathematics makes use of a very large collection of symbols. It is difficult to write mathematics fluently if these characters are not available for use. It is difficult to read mathematics if corresponding glyphs are not available for presentation on specific display devices. In the majority of cases it is preferable to store characters directly as Unicode character data or as XML numeric character references. However, in some environments it is more convenient to use the ASCII input mechanism provided by XML entity references. Many entity names are in common use, and this specification aims to provide standard mappings to Unicode for each of these names. It introduces no names that have not already been used in earlier specifications. Specifically the entity names in the sets starting with the letters "iso" were first standardized in SGML ([SGML]) and updated in [ISO9573-13-1991], the entity names in the sets with names starting "mml" were first standardized in MathML ([MathML2]) and those starting with "xhtml" were first standardized in HTML ([HTML4]).
3 Unicode Character Blocks for Scientific DocumentsCertain characters are of of particular relevance to scientific document production. The following tables display Unicode ranges containing the characters that are most used in mathematics.
000 C0 Controls and Basic Latin, C1 Controls and Latin-1 Supplement 001 Latin Extended-A, Latin Extended-B 002 IPA Extensions, Spacing Modifier Letters 003 Combining Diacritical Marks, Greek and Coptic 004 Cyrillic 020 General Punctuation, Superscripts and Subscripts, Currency Symbols, Combining Diacritical Marks for Symbols 021 Letterlike Symbols, Number Forms, Arrows 022 Mathematical Operators 023 Miscellaneous Technical 024 Control Pictures, Optical Character Recognition, Enclosed Alphanumerics 025 Box Drawing, Block Elements, Geometric Shapes 026 Miscellaneous Symbols 027 Dingbats, Miscellaneous Mathematical Symbols-A, Supplemental Arrows-A 029 Supplemental Arrows-B, Miscellaneous Mathematical Symbols-B 02A Supplemental Mathematical Operators 0FB Alphabetic Presentation Forms, Arabic Presentation Forms-A 0FE Variation Selectors, Vertical Forms, Combining Half Marks, CJK Compatibility Forms, Small Form Variants, Arabic Presentation Forms-B 1D4 Mathematical Alphanumeric SymbolsRetroSearch is an open source project built by @garambo | Open a GitHub Issue
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