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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<link rel="stylesheet" href="https://openmath.org/public/css/hyde.css"/>
<link rel="stylesheet" href="https://openmath.org/public/css/main.css"/>
<link rel="shortcut icon" sizes="144x144" type="image/png" href="/public/favicon.png"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS-MML_SVG"> </script>
<script type="text/javascript"> function divfold(_Id){
var thisLevel = document.getElementById(_Id);
var thisLevela = document.getElementById(_Id.concat("a"))
if(thisLevel.style.display != "none"){
thisLevel.style.display = "none";
thisLevela.style.backgroundColor = "#CCCCCC";}
else{
thisLevel.style.display = "block";
thisLevela.style.backgroundColor = "#AAFFAA";}
}
</script>
<title>altenc</title>
<link rel="stylesheet" href="https://openmath.org/cd/omcd.css" type="text/css"/>
</head>
<body class="theme-base-odk">
<div class="sidebar">
<div class="container">
<div class="sidebar-about">
<h1>
<a href="/">
<img src="https://openmath.org/public/logo.png" alt="OpenMath" width="100%"/>
</a>
</h1>
<p class="lead">OpenMath is an extensible standard for representing the semantics of mathematical objects.</p>
<p class="site-url lead">
<a href="https://openmath.org/">https://openmath.org</a>
</p>
</div>
<nav class="sidebar-nav">
<a class="sidebar-nav-item" href="https://openmath.org/">Home</a> ,
<a class="sidebar-nav-item" href="https://openmath.org/about/">OpenMath</a>
<br/>
<a class="sidebar-nav-item" href="https://openmath.org/society/">OM Society</a> ,
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<br/>
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<a class="sidebar-nav-item" href="https://openmath.org/documents/">Documents</a> ,
<a class="sidebar-nav-item" href="https://openmath.org/cd/">CDs</a>
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<img class="icon" src="https://openmath.org/public/github_w.png" alt="github"/>
</a>
</span>
<br/>
</nav>
</div>
</div>
<div class="content container">
<div class="page">
<a name="top"/>
<h1>OpenMath Content Dictionary: altenc</h1>
<dl>
<dt>
<span class="dt">Canonical URL:</span>
</dt>
<dd>
<a href="http://www.openmath.org/cd/altenc.ocd">http://www.openmath.org/cd/altenc.ocd</a>
</dd>
<dt>
<span class="dt">CD Base:</span>
</dt>
<dd>
<a href="http://www.openmath.org/cd">http://www.openmath.org/cd</a>
</dd>
<dt>
<span class="dt">CD File:</span>
</dt>
<dd>
<a href="altenc.ocd">altenc.ocd
</a>
</dd>
<dt>
<span class="dt">CD as XML Encoded OpenMath:</span>
</dt>
<dd>
<a href="altenc.omcd">altenc.omcd
</a>
</dd>
<dt>
<span class="dt">Defines:</span>
</dt>
<dd>
<a href="#LaTeX_encoding">LaTeX_encoding</a>, <a href="#MathML_encoding">MathML_encoding</a>
</dd>
<dt>
<span class="dt">Date:</span>
</dt>
<dd>2004-05-23</dd>
<dt>
<span class="dt">Version:</span>
</dt>
<dd>3
(Revision 2)
</dd>
<dt>
<span class="dt">Review Date:</span>
</dt>
<dd>2006-03-30</dd>
<dt>
<span class="dt">Status:</span>
</dt>
<dd>official</dd>
</dl>
<hr/>
<pre>
This document is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
The copyright holder grants you permission to redistribute this
document freely as a verbatim copy. Furthermore, the copyright
holder permits you to develop any derived work from this document
provided that the following conditions are met.
a) The derived work acknowledges the fact that it is derived from
this document, and maintains a prominent reference in the
work to the original source.
b) The fact that the derived work is not the original OpenMath
document is stated prominently in the derived work. Moreover if
both this document and the derived work are Content Dictionaries
then the derived work must include a different CDName element,
chosen so that it cannot be confused with any works adopted by
the OpenMath Society. In particular, if there is a Content
Dictionary Group whose name is, for example, `math' containing
Content Dictionaries named `math1', `math2' etc., then you should
not name a derived Content Dictionary `mathN' where N is an integer.
However you are free to name it `private_mathN' or some such. This
is because the names `mathN' may be used by the OpenMath Society
for future extensions.
c) The derived work is distributed under terms that allow the
compilation of derived works, but keep paragraphs a) and b)
intact. The simplest way to do this is to distribute the derived
work under the OpenMath license, but this is not a requirement.
If you have questions about this license please contact the OpenMath
society at <a href="http://www.openmath.org">http://www.openmath.org</a>.
</pre>
<pre>
Author: OpenMath Consortium
SourceURL: <a href="https://github.com/OpenMath/CDs">https://github.com/OpenMath/CDs</a>
</pre>
<p>
A CD of alternative encoding symbols </p>
<p>This CD is motivated in part by a desire to maintain compatibility
with the MathML semantics element,</p>
<p>In order for it to be possible for OpenMath to express symbols in an
alternative encoding (this facilitates the exact translation and
representation of objects) we use the OpenMath attribution nodes
(which performs a similar role to the MathML semantics nodes). The
formats and descriptions of common syntaxes are held in this CD; at
present this only includes LaTeX and MathML.
</p>
<pre>
Alternative encodings in OpenMath are dealt with by using OMATTR
symbols together with the alternative encoding placed in a string.
The string encoding must be valid XML, and so non-XML valid characters
must themselves be encoded as suggested in "Draft of the OpenMath
Standard".
For alternative encodings to be represented in OpenMath, one must
define a symbol to describe the encoding.
</pre>
<hr/>
<h2>
<a name="MathML_encoding">MathML_encoding</a>
</h2>
<dl>
<dt>
<span class="dt">Role:</span>
</dt>
<dd>attribution</dd>
</dl>
<dl>
<dt>
<span class="dt">Description:</span>
</dt>
<dd>
<p>
A symbol which heads a piece of MathML encoding in an attribution. The
MathML encoding is an XML encoding, and the details may be found at:
<a href="http://www.w3.org/Math/Overview.html">http://www.w3.org/Math/Overview.html</a>
</p>
</dd>
</dl>
<dl>
<dt>
<span class="dt">Example:</span>
</dt>
<dd>
<div>
<button id="id.om.15xmla" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.15xml')">OpenMath XML (source)</button>
<pre id="id.om.15xml" style="display:none">
<OMOBJ xmlns="http://www.openmath.org/OpenMath" version="2.0" cdbase="http://www.openmath.org/cd">
<OMATTR>
<OMATP>
<OMS cd="altenc" name="MathML_encoding"/>
<OMFOREIGN encoding="MathML-Presentation">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mi>sin</mi><mfenced><mn>1.5</mn></mfenced>
</math>
</OMFOREIGN>
<OMS cd="altenc" name="LaTeX_encoding"/>
<OMSTR>
\sin(1.5)
</OMSTR>
</OMATP>
<OMA>
<OMS cd="transc1" name="sin"/>
<OMF dec="1.5"/>
</OMA>
</OMATTR>
</OMOBJ></pre>
</div>
<div>
<button id="id.om.15cmmla" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.15cmml')">Strict Content MathML</button>
<pre id="id.om.15cmml" style="display:none; margin-top: 0.5em">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<semantics>
<apply><csymbol cd="transc1">sin</csymbol><cn type="real">1.5</cn></apply>
<annotation-xml cd="altenc" name="MathML_encoding"><math><mi>sin</mi><mfenced><mn>1.5</mn></mfenced></math></annotation-xml>
<annotation-xml cd="altenc" name="LaTeX_encoding"><cs>
\sin(1.5)
</cs></annotation-xml>
</semantics>
</math></pre>
</div>
<button id="id.om.15prefa" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.15pref')">Prefix</button>
<div id="id.om.15pref" style="display:none; margin-top: 0.5em">
<b>Attrib</b>([
<a href="../../../cd/altenc.html#MathML_encoding">MathML_encoding</a>
sin1.5
<a href="../../../cd/altenc.html#LaTeX_encoding">LaTeX_encoding</a>
<tt> "
\sin(1.5)
" </tt>
],
<a href="../../../cd/transc1.html#sin">sin</a>
( 1.5 )
)
</div>
<div>
<button id="id.om.15popa" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.15pop')">Popcorn</button>
<div id="id.om.15pop" style="display:none; margin-top: 0.5em">
sin(1.5){altenc.MathML_encoding -> `MathML-Presentation
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mi>sin</mi><mfenced><mn>1.5</mn></mfenced>
</math>
`, altenc.LaTeX_encoding -> "
\sin(1.5)
"}
</div>
</div>
<div>
<button id="id.om.15mmla" style="width:20em; background-color:#AAFFAA"
onclick="divfold('id.om.15mml')">Rendered Presentation MathML</button>
<div id="id.om.15mml" style="display:block; margin-top: 0.5em">
<div style="overflow:auto;font-size:90%">
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
<mrow xmlns:om="http://www.openmath.org/OpenMath">
<mi>sin</mi>
<mo>⁡</mo>
<mrow>
<mo>(</mo>
<mn>1.5</mn>
<mo>)</mo>
</mrow>
</mrow>
</math>
</div>
</div>
</div>
</dd>
</dl>
<dl>
<dt>
<span class="dt">Example:</span>
</dt>
<dd>
<div>
<button id="id.om.30xmla" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.30xml')">OpenMath XML (source)</button>
<pre id="id.om.30xml" style="display:none">
<OMOBJ xmlns="http://www.openmath.org/OpenMath" version="2.0" cdbase="http://www.openmath.org/cd">
<OMATTR>
<OMATP>
<OMS cd="altenc" name="MathML_encoding"/>
<OMFOREIGN encoding="MathML-Presentaion">
<mrow xmlns="http://www.w3.org/1998/Math/MathML">
<mn mathcolor="green">3</mn>
</mrow>
</OMFOREIGN>
</OMATP>
<OMA>
<OMS cd="arith1" name="plus"/>
<OMI>1</OMI>
<OMI>2</OMI>
</OMA>
</OMATTR>
</OMOBJ></pre>
</div>
<div>
<button id="id.om.30cmmla" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.30cmml')">Strict Content MathML</button>
<pre id="id.om.30cmml" style="display:none; margin-top: 0.5em">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<semantics>
<apply><csymbol cd="arith1">plus</csymbol>
<cn type="integer">1</cn>
<cn type="integer">2</cn>
</apply>
<annotation-xml cd="altenc" name="MathML_encoding"><mrow><mn mathcolor="green">3</mn></mrow></annotation-xml>
</semantics>
</math></pre>
</div>
<button id="id.om.30prefa" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.30pref')">Prefix</button>
<div id="id.om.30pref" style="display:none; margin-top: 0.5em">
<b>Attrib</b>([
<a href="../../../cd/altenc.html#MathML_encoding">MathML_encoding</a>
3
],
<a href="../../../cd/arith1.html#plus">plus</a>
(1, 2)
)
</div>
<div>
<button id="id.om.30popa" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.30pop')">Popcorn</button>
<div id="id.om.30pop" style="display:none; margin-top: 0.5em">
1 + 2{altenc.MathML_encoding -> `MathML-Presentaion
<mrow xmlns="http://www.w3.org/1998/Math/MathML">
<mn mathcolor="green">3</mn>
</mrow>
`}
</div>
</div>
<div>
<button id="id.om.30mmla" style="width:20em; background-color:#AAFFAA"
onclick="divfold('id.om.30mml')">Rendered Presentation MathML</button>
<div id="id.om.30mml" style="display:block; margin-top: 0.5em">
<div style="overflow:auto;font-size:90%">
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
<mrow xmlns:om="http://www.openmath.org/OpenMath">
<mn>1</mn>
<mo>+</mo>
<mn>2</mn>
</mrow>
</math>
</div>
</div>
</div>
</dd>
</dl>
<dl>
<dt>
<span class="dt">Signatures:</span>
</dt>
<dd>
<a href="../../sts/altenc.html#MathML_encoding">
sts
</a>
</dd>
</dl>
<p/>
<hr/>
<table width="100%">
<tr>
<td align="right">
<font size="-1">
[Next: <a href="#LaTeX_encoding">LaTeX_encoding</a>]
[Last: <a href="#LaTeX_encoding">LaTeX_encoding</a>]
[<a href="#top">Top</a>]</font>
</td>
</tr>
</table>
<hr/>
<h2>
<a name="LaTeX_encoding">LaTeX_encoding</a>
</h2>
<dl>
<dt>
<span class="dt">Role:</span>
</dt>
<dd>attribution</dd>
</dl>
<dl>
<dt>
<span class="dt">Description:</span>
</dt>
<dd>
<p>
A symbol which heads a piece of LaTeX encoding in an attribution.
</p>
</dd>
</dl>
<dl>
<dt>
<span class="dt">Example:</span>
</dt>
<dd>
<div>
<button id="id.om.46xmla" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.46xml')">OpenMath XML (source)</button>
<pre id="id.om.46xml" style="display:none">
<OMOBJ xmlns="http://www.openmath.org/OpenMath" version="2.0" cdbase="http://www.openmath.org/cd">
<OMATTR>
<OMATP>
<OMS cd="altenc" name="LaTeX_encoding"/>
<OMSTR>
\sin(1.5)
</OMSTR>
</OMATP>
<OMA>
<OMS cd="transc1" name="sin"/>
<OMF dec="1.5"/>
</OMA>
</OMATTR>
</OMOBJ></pre>
</div>
<div>
<button id="id.om.46cmmla" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.46cmml')">Strict Content MathML</button>
<pre id="id.om.46cmml" style="display:none; margin-top: 0.5em">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<semantics>
<apply><csymbol cd="transc1">sin</csymbol><cn type="real">1.5</cn></apply>
<annotation-xml cd="altenc" name="LaTeX_encoding"><cs>
\sin(1.5)
</cs></annotation-xml>
</semantics>
</math></pre>
</div>
<button id="id.om.46prefa" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.46pref')">Prefix</button>
<div id="id.om.46pref" style="display:none; margin-top: 0.5em">
<b>Attrib</b>([
<a href="../../../cd/altenc.html#LaTeX_encoding">LaTeX_encoding</a>
<tt> "
\sin(1.5)
" </tt>
],
<a href="../../../cd/transc1.html#sin">sin</a>
( 1.5 )
)
</div>
<div>
<button id="id.om.46popa" style="width:20em; background-color:#CCCCCC"
onclick="divfold('id.om.46pop')">Popcorn</button>
<div id="id.om.46pop" style="display:none; margin-top: 0.5em">
sin(1.5){altenc.LaTeX_encoding -> "
\sin(1.5)
"}
</div>
</div>
<div>
<button id="id.om.46mmla" style="width:20em; background-color:#AAFFAA"
onclick="divfold('id.om.46mml')">Rendered Presentation MathML</button>
<div id="id.om.46mml" style="display:block; margin-top: 0.5em">
<div style="overflow:auto;font-size:90%">
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
<mrow xmlns:om="http://www.openmath.org/OpenMath">
<mi>sin</mi>
<mo>⁡</mo>
<mrow>
<mo>(</mo>
<mn>1.5</mn>
<mo>)</mo>
</mrow>
</mrow>
</math>
</div>
</div>
</div>
</dd>
</dl>
<dl>
<dt>
<span class="dt">Signatures:</span>
</dt>
<dd>
<a href="../../sts/altenc.html#LaTeX_encoding">
sts
</a>
</dd>
</dl>
<p/>
<hr/>
<table width="100%">
<tr>
<td align="right">
<font size="-1">
[First: <a href="#MathML_encoding">MathML_encoding</a>]
[Previous: <a href="#MathML_encoding">MathML_encoding</a>]
[<a href="#top">Top</a>]</font>
</td>
</tr>
</table>
</div>
</div>
</body>
</html>