A Tiny MCE plugin which makes writing latex equation easy and WYSIWYG（what you see is what you get）. It converts latex code into image which shows real beautiful latex equations on your post.
It adds an “fx” botton on the wordpress TinyMCE editor, on clicks it the codecogs latex equation editor pops up, where you can edit latex, then click the copy button to copy the equation image back in TinyMCE textarea.
You can also use this editor to only input latex code and let plugins like quicklatex, mathjax or Latex for WordPess to convert it to equation image, you’d better change line 90 in editor_plugin.js 
tinyMCE.activeEditor.execCommand(‘mceInsertContent’, false, ”); 
to 
tinyMCE.activeEditor.execCommand(‘mceInsertContent’, false, ‘\[‘+latex+’\]’); 
inorder to only copy LaTex code to TinyMCE textarea when click the copy button.
I just followed the tutorial written by Greg Winiarski(http://ditio.net/2010/08/15/adding-custom-buttons-to-wordpress-tinymce/) and make codecogs Tiny MCE plugin(http://www.codecogs.com/latex/integration/tinymce/install.php) into a wordpress plugin. Thanks the great guys. If you can make the plugin better to use please tell me in http://www.verymath.com/2011/05/10/codecogs-latex-equation-editor/
<h3>Arbitrary section</h3>
You may provide arbitrary sections, in the same format as the ones above. This may be of use for extremely complicated 
plugins where more information needs to be conveyed that doesn’t fit into the categories of “description” or 
“installation.” Arbitrary sections will be shown below the built-in sections outlined above.
<h3>A brief Markdown Example</h3>
Ordered list:
<ol>
<li>Some feature</li>
<li>Another feature</li>
<li>Something else about the plugin</li>
</ol>
Unordered list:
<ul>
<li>something</li>
<li>something else</li>
<li>third thing</li>
</ul>
Here’s a link to <a href="https://wordpress.org/" title="Your favorite software" rel="ugc">WordPress</a> and one to <a href="http://daringfireball.net/projects/markdown/syntax" title="Markdown is what the parser uses to process much of the readme file" rel="nofollow ugc">Markdown’s Syntax Documentation</a>. 
Titles are optional, naturally.
Markdown uses email style notation for blockquotes and I’ve been told:
<blockquote>
Asterisks for emphasis. Double it up for strong.
</blockquote>
<pre><code><?php code(); // goes in backticks ?>
</code></pre>

Codecogs Latex Equation Editor

Adds codecogs WYSIWYG LaTex equation popup editor to wordrpess TinyMCE editor.

eoghanmcilwaine

Type complex math expressions easily into your wordpress page using MathQuill (http://mathquill.com/). This plugin adds a new block editor called ‘Direct math input’ in the ‘widgets’ category.
Math expressions are saved in LaTeX format and rendered by MathQuill during pageview.
<h4>Usage</h4>
After installing, a new block editor called ‘Direct math input’ will be available. Each block contains a MathQuill instance 
where you can edit math right on your page.
When the math editor is focused, you can enter math symbols using your keyboard or via copy/paste. 
See the http://mathquill.com/ homepage for a visual demonstration of how to input math.
Some common keyboard shortcuts are as follows:
<ul>
<li>/ (forward slash) Enter a new fraction, with focusable input areas for numerator and denominator</li>
<li>^ (caret) Enter a new superscript, e.g. to add an exponent</li>
<li>_ (underscore) Enter a new subscript </li>
<li>( (open parentheses) Open parentheses (which will scale based on the height of the content inside) Other parenthesis types behave similarly, e.g. [ and {</li>
<li>\ (backslash) Start typing one of the control sequences below. When finished, press enter or space to see the resulting symbol</li>
</ul>
Control sequences – to create each symbol, type the full sequence (including the backslash) into the math editor, followed by 
space or enter. (not an exhaustive list)
<ul>
<li>\plusminus</li>
<li>\times</li>
<li>\alpha</li>
<li>\beta</li>
<li>\gamma</li>
<li>\delta</li>
<li>\Alpha</li>
<li>\Beta</li>
<li>\Gamma</li>
<li>\Delta</li>
<li>\summation</li>
<li>\prod</li>
<li>\int</li>
<li>\sqrt</li>
<li>\nthroot</li>
<li>\lt</li>
<li>\gt</li>
<li>\le</li>
<li>\ge</li>
<li>\approx</li>
<li>\doteq</li>
<li>\neq</li>
<li>\nless</li>
<li>\ngtr</li>
<li>\intersection</li>
<li>\union</li>
<li>\subset</li>
<li>\superset</li>
<li>\notsubset</li>
<li>\nosuperset</li>
<li>\subseteq</li>
<li>\isin</li>
<li>\contains</li>
<li>\notcontains</li>
<li>\Complex</li>
<li>\Hamiltonian</li>
<li>\Imaginary</li>
<li>\Naturals</li>
<li>\Primes</li>
<li>\Rationals</li>
<li>\Reals</li>
</ul>

Direct math input with MathQuill

Type complex math expressions easily into your wordpress page using MathQuill (http://mathquill.com/). This plugin adds a new block editor called &#03 …

Codecogs Latex Equation Editor vs Direct math input with MathQuill