Editing A2HostingEnvironment (section)

===June 9===
Download and Install Extension:Math
<ol>
  <li>From Safari on my iMac, I went to the page titled, [https://www.mediawiki.org/wiki/Special:ExtensionDistributor/Math Download MediaWiki extension]; this means that the downloaded file(s) will initially end up on my iMac, under folder &hellip; ~/myMediaWiki/Math</li>
  <li>It asked for MediaWiki version number &hellip;
  <ul>
<li>Under the ''Tools'' subsection of the Main_Page sidebar, click on '''special pages''';</li>
<li>Then, under the ''Data &amp; Tools'' subheading, click on '''Version'''.</li>
<li>ANS:  the a2Hosting installation was <font color="red">Version = 1.36.0</font>, which is the version number labeled "latest stable MediaWiki" on the extension download page.
  </ul>
<table border="0" align="center" width="80%">
  <tr><td align="left">
[[File:READMEdownloadMathExtension.png|600px|README download Math Extension (9 June 2021)]]
  </td></tr>
</table>
  </li>
  <li>I directed the "snapshot URL" download link to put the ~.tar.gz file directly into the ~/myMediaWiki/Math folder on my iMac.  From the command line of my iMac's ''terminal'' screen I typed:  <font color="darkgreen">tar -xzvf Math-REL1_36-8c7c35b.tar.gz</font>.  Looks like this file was unwrapped properly; the unpacking involved (1) creation of a subfolder named "Math" and (2) storing all files in this newly created folder.  Note that, since the unpacking self-generated the new "Math" subfolder, I ended up with a ~/Math/Math/ folder construction.</li>
  <li>Using ''FileZilla'' on my iMac, I transferred (via SFTP) the original ~.tar/gz file into the extensions subfolder of my SelfGravitating wiki site on the a2Holding server.  Then, using the cPanel terminal app, I changed into the ~/SelfGravitatingFluids/extensions folder and typed the same command, namely: <font color="darkgreen">tar -xzvf Math-REL1_36-8c7c35b.tar.gz</font>.  A new "Math" subfolder was created within the "extensions" subfolder and all of the "unpacked" files appear to have been properly stored there.</li>
  <li>
Carry out the last couple of 8 June ''contemplated steps''.
<ul>
<li>Add the following code at the bottom of your ~/SelfGravitatingFluids/LocalSettings.php:
  <ul>
    <li>wfLoadExtension( 'Math' );</li>
  </ul>
</li>
<li>Run the update script which will automatically create the necessary database tables that this extension needs.  According to [https://www.mediawiki.org/wiki/Manual:Update.php this documentation], updating involves the following: (1) Change to the '''maintenance''' directory, then at the command-line prompt, type '''php update.php'''.</li>
</ul>
  </li>
  <li>
<font color="red">'''HOORAY!!'''</font> As is illustrated in Table 1, the LaTex instructions appear to work:  (''left'') a few lines of plain text, and (''right'') the "Extension:Math" rendering results.  NOTE:  These (admittedly simple) math expressions are ''not'' embedded .png images but, rather, have each letter placed individually; this is illustrated by the fact that the light-blue background color is able to color throughout the expressions.

<table border="1" align="center" cellpadding="8">
<tr><td colspan="2" align="center">'''Table 1'''</td></tr>
<tr><td align="center">Plain Text</td><td align="center">Rendering</td></tr>
<tr>
  <td align="left">
<pre>
I'm just testing to see if I'm properly editing.
<math>
E = mc^2
</math>

<div align="center">
<math>H = \int\frac{dP}{\rho}</math> .
</div>
</pre>
  </td>
  <td align="left" bgcolor="lightblue">
I'm just testing to see if I'm properly editing.
<math>
E = mc^2
</math>

<div align="center">
<math>H = \int\frac{dP}{\rho}</math> .
</div>
  </td>
</tr>
</table>
  </li>
</ol>


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