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File:  [LON-CAPA] / loncom / html / adm / ckeditor / plugins / lcm / samples / lcm.html
Revision 1.1: download - view: text, annotated - select for diffs
Tue Mar 31 13:45:57 2015 UTC (9 years, 10 months ago) by damieng
Branches: MAIN
CVS tags: version_2_12_X, version_2_11_X, version_2_11_6_msu, version_2_11_6, version_2_11_5_msu, version_2_11_5, version_2_11_4_uiuc, version_2_11_4_msu, version_2_11_4, version_2_11_3_uiuc, version_2_11_3_msu, version_2_11_3, version_2_11_2_uiuc, version_2_11_2_msu, version_2_11_2_educog, version_2_11_2, HEAD
updated ckeditor to 4.4.7 with an additional plugin to handle <m> with MathJax

<!DOCTYPE html>
<!--
Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.md or http://ckeditor.com/license
-->
<html>
<head>
    <meta charset="utf-8">
    <title>Mathematical Formulas &mdash; CKEditor Sample</title>
    <script src="../../../ckeditor.js"></script>
    <link href="../../../samples/sample.css" rel="stylesheet">
    <meta name="ckeditor-sample-name" content="Mathematics plugin">
    <meta name="ckeditor-sample-group" content="Plugins">
    <meta name="ckeditor-sample-description" content="Create mathematical equations in TeX and display them in visual form.">
    <meta name="ckeditor-sample-isnew" content="1">
    <script>
        CKEDITOR.disableAutoInline = true;
    </script>
</head>
<body>
    <h1 class="samples">
        <a href="../../../samples/index.html">CKEditor Samples</a> &raquo; Mathematical Formulas
    </h1>

    <div class="description">
        <p>
            This sample shows the usage of the CKEditor mathematical plugin that introduces a LCM widget. You can now use it to create or modify equations using TeX.
        </p>
        <p>
            TeX content will be automatically replaced by a widget when you put it in a <code>&lt;span class="math-tex"&gt;</code> element. You can also add new equations by using the <strong>Math</strong> toolbar button and entering TeX content in the plugin dialog window. After you click <strong>OK</strong>, a widget will be inserted into the editor content.
        </p>
        <p>
            The output of the editor will be plain TeX with &lt;m&gt; delimiters: <code>&lt;m&gt;</code> and <code>&lt;/m&gt;</code>, as in the code below:
        </p>
<pre class="samples">
&lt;m&gt; \sqrt{1} + (1)^2 = 2 &lt;/m&gt;
</pre>
        <p>
            To transform TeX into a visual equation, a page must include the <a href="http://docs.mathjax.org/en/latest/start.html">MathJax script</a>.
        </p>
        <p>
            In order to use the new plugin, include it in the <code><a class="samples" href="http://docs.ckeditor.com/#!/api/CKEDITOR.config-cfg-extraPlugins">config.extraPlugins</a></code> configuration setting.
        </p>
<pre class="samples">
CKEDITOR.replace( '<em>textarea_id</em>', {
    <strong>allowedContent: true,</strong>
    <strong>extraPlugins: 'lcm'</strong>
} );
</pre>
        <p id="ie8-warning">
            Please note that this plugin is not compatible with Internet Explorer 8.
        </p>
    </div>

    <textarea id="editor1" cols="10" rows="10">

        &lt;p&gt;The following equations are represented in the HTML source code as LaTeX expressions.&lt;/p&gt;&lt;h1&gt;The Cauchy-Schwarz Inequality&lt;/h1&gt;&lt;p&gt;&lt;m&gt; \left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right) &lt;/m&gt;&lt;/p&gt;&lt;h1&gt;The probability of getting &lt;m&gt;k&lt;/m&gt; heads when flipping &lt;m&gt;n&lt;/m&gt; coins is&lt;/h1&gt;&lt;p&gt;&lt;m&gt;P(E) = {n \choose k} p^k (1-p)^{ n-k} &lt;/m&gt;&lt;/p&gt;&lt;p&gt;Finally, while displaying equations is useful for demonstration purposes, the ability to mix math and text in a paragraph is also important. This expression &lt;m&gt;\sqrt{3x-1}+(1+x)^2&lt;/m&gt; is an example of an inline equation.  As you see, MathJax equations can be used this way as well, without disturbing the spacing between the lines.&lt;/p&gt;

    </textarea>
    <script>

        CKEDITOR.replace( 'editor1', {
            allowedContent: true,
            extraPlugins: 'lcm',
            height: 350
        } );

        if ( CKEDITOR.env.ie && CKEDITOR.env.version == 8 )
            document.getElementById( 'ie8-warning' ).className = 'warning';

    </script>

    <div id="footer">
        <hr>
        <p>
            CKEditor - The text editor for the Internet - <a class="samples" href="http://ckeditor.com/">http://ckeditor.com</a>
        </p>
        <p id="copy">
            Copyright &copy; 2003-2015, <a class="samples" href="http://cksource.com/">CKSource</a> - Frederico
            Knabben. All rights reserved.
        </p>
    </div>
</body>
</html>
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