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<!DOCTYPE html>
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  <div class="section" id="the-mathjax-variable">
<h1>The MathJax variable<a class="headerlink" href="#the-mathjax-variable" title="Permalink to this headline"></a></h1>
<p>MathJax has a single global variable, <code class="docutils literal"><span class="pre">MathJax</span></code>, in which all its
data, and the data for loaded components, are stored.  The MathJax
variable is a nested structure, with its top-level properties being
objects themselves.</p>
<div class="section" id="main-mathjax-components">
<h2>Main MathJax Components<a class="headerlink" href="#main-mathjax-components" title="Permalink to this headline"></a></h2>
<dl class="describe">
<dt>
<code class="descname">MathJax.Hub</code></dt>
<dd><p>Contains the MathJax hub code and variables, including the startup
code, the onload handler, the browser data, and so forth.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.Ajax</code></dt>
<dd><p>Contains the code for loading external modules and creating
stylesheets.  Most of the code that causes MathJax to
operate asynchronously is handled here.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.Message</code></dt>
<dd><p>Contains the code to handle the intermittent message window that
periodically appears in the lower left-hand corner of the window.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.HTML</code></dt>
<dd><p>Contains support code for creating HTML elements dynamically from
descriptions stored in JavaScript objects.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.CallBack</code></dt>
<dd><p>Contains the code for managing MathJax callbacks, queues and
signals.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.Extension</code></dt>
<dd><p>Initially empty, this is where extensions can load their code.
For example, the <cite>tex2jax</cite> preprocessor creates
<code class="docutils literal"><span class="pre">MathJax.Extension.tex2jax</span></code> for its code and variables.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.Menu</code></dt>
<dd><p>Initially null, this is where the MathJax contextual menu is
stored, when <code class="docutils literal"><span class="pre">extensions/MathMenu.js</span></code> is loaded.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.Object</code></dt>
<dd><p>Contains the code for the MathJax object-oriented programming model.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.InputJax</code></dt>
<dd><p>The base class for all input <cite>jax</cite> objects.  Subclasses for
specific input jax are created as sub-objects of
<code class="docutils literal"><span class="pre">MathJax.InputJax</span></code>. For example, the TeX input jax loads itself
as <code class="docutils literal"><span class="pre">MathJax.InputJax.TeX</span></code>.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.OutputJax</code></dt>
<dd><p>The base class for all output <cite>jax</cite> objects.  Subclasses for
specific output jax are created as sub-objects of
<code class="docutils literal"><span class="pre">MathJax.OutputJax</span></code>.  For example, the HTML-CSS output jax loads
itself as <code class="docutils literal"><span class="pre">MathJax.OutputJax[&quot;HTML-CSS&quot;]</span></code>.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.ElementJax</code></dt>
<dd><p>The base class for all element <cite>jax</cite> objects.  Subclasses for
specific element jax are created as sub-objects of
<code class="docutils literal"><span class="pre">MathJax.ElementJax</span></code>.  For example, the mml element jax loads
itself as <code class="docutils literal"><span class="pre">MathJax.ElementJax.mml</span></code>.</p>
</dd></dl>

</div>
<div class="section" id="properties">
<h2>Properties<a class="headerlink" href="#properties" title="Permalink to this headline"></a></h2>
<dl class="describe">
<dt>
<code class="descname">MathJax.version</code></dt>
<dd><p>The version number of the MathJax library as a whole.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.fileversion</code></dt>
<dd><p>The version number of the <code class="docutils literal"><span class="pre">MathJax.js</span></code> file specifically.</p>
</dd></dl>

<dl class="describe">
<dt>
<code class="descname">MathJax.isReady</code></dt>
<dd><p>This is set to <code class="docutils literal"><span class="pre">true</span></code> when MathJax is set up and ready to
perform typesetting actions (and is <code class="docutils literal"><span class="pre">null</span></code> otherwise).</p>
</dd></dl>

</div>
</div>


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