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<div class="title">ROOTPATH Set FreeMat Root Path </div> </div>
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<div class="textblock"><p>Section: <a class="el" href="sec_freemat.html">FreeMat Functions</a> </p>
<h1><a class="anchor" id="Usage"></a>
Usage</h1>
<p>In order to function properly, FreeMat needs to know where to find the <code>toolbox</code> directory as well as the <code>help</code> directory. These directories are located on what is known as the <code>root path</code>. Normally, FreeMat should know where these directories are located. However under some circumstances (usually when FreeMat is installed into a non-default location), it may be necessary to indicate a different root path location, or to specify a particular one. Note that on the Mac OS platform, FreeMat is installed as a bundle, and will use the toolbox that is installed in the bundle regardless of the setting for <code>rootpath</code>. For Linux, FreeMat will typically use <code>/usr/local/share/FreeMat-<Version>/</code> for the root path. Installations from source code will generally work, but binary installations (e.g., from an <code>RPM</code>) may need to have the rootpath set.</p>
<p>The <code>rootpath</code> function has two forms. The first form takes no arguments and returns the current root path </p>
<pre class="fragment"> rootpath
</pre><p> The second form will set a rootpath directly from the command line </p>
<pre class="fragment"> rootpath(path)
</pre><p> where <code>path</code> is the full path to where the <code>toolbox</code> and <code>help</code> directories are located. For example, <code>rootpath('/usr/share/FreeMat-4.0')</code>. The third form enables the GUI form </p>
<pre class="fragment"> rootpath gui
</pre><p> which activates a dialog box to pick a directory that is the root directory of the FreeMat installation (e.g., where <code>help</code> and <code>toolbox</code> are located. Changes to <code>rootpath</code> are persistent (you do not need to run it every time you start FreeMat). </p>
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