# confluence-mathjax

Please note that the binaries for this plug in are out of date but the source in github should work for newer versions of Confluence.

This plugin for Atlassian Confluence, provides a thin wrapper around MathJax. MathJax is an open source JavaScript display engine for mathematics that works in all modern browsers.

Two macros for Confluence are provided: mathinline and mathdisplay. They both accept mathematics in Latex notation and output either an inline equation (within the main text) or a displayed equation (separate from the main text, typically centered on the page). AMSmath extensions for Latex are also enabled.

Help is provided in the Confluence Notation Guide under the Advanced Formatting tab.

### Example usage

A few simple examples:

• {mathinline}\frac{x}{y}{mathinline} a nice fraction.
• And to get a nice integral, simply use {mathdisplay}\int_{-\infty}^\infty \mbox{e}^{-x^2} \mbox{d}x.{mathdisplay}
• Or using some AMS math features:
{mathdisplay}
\begin{bmatrix} \dot x\\ \dot y\end{bmatrix} =
\begin{bmatrix}a_{1,1} & a_{1,2}\\ a_{2,1} & a_{2,2}\end{bmatrix}
\begin{bmatrix}x\\ y\end{bmatrix}
{mathdisplay}

This should produce (also using MathJax on this page!):

• $\frac{x}{y}$ a nice fraction.
• And to get a nice integral, simply use $$\int_{-\infty}^\infty \mbox{e}^{-x^2} \mbox{d}x.$$
• Or using some AMS math features:$$\begin{bmatrix} \dot x\\ \dot y\end{bmatrix} = \begin{bmatrix}a_{1,1} & a_{1,2}\\ a_{2,1} & a_{2,2}\end{bmatrix} \begin{bmatrix}x\\ y\end{bmatrix}$$

### Downloading

At the moment this plugin definitely works for Atlassian Confluence 3.4-4.1 and possibly for earlier versions (I haven’t tested below 3.4). If you install in Confluence 3.x, it might complain that some dependencies are not fulfilled. This is normal and due to the fact that the macro format has changed with Confluence 4.x.

You can grab the source code from GitHub.

The plugin is now on the Atlassian Plugin Exchange. It can also be downloaded from the downloads section at GitHub.

### Compiling

If you don’t want to compile the plugin yourself, download the binary from the link above.

The easiest way to compile this plugin is to download the Atlassian SDK and simply type

atlas-package

Alternatively, use

atlas-run

to automatically run a Confluence instance with the plugin installed (uses a development licensed Confluence). Different versions of Confluence can be tried using

atlas-run --version 3.5.13

The src/main/resources/mathjax directory contains a pristine copy of MathJax v1.1a. It can be updated as necessary to newer versions of MathJax as and when they are released, provided that the configuration mechanism does not change from version to version.

Note: MathJax itself is not included in the source repository. Simply download it from the MathJax website and unpack in the appropriate directory. MathJax.js should end up as src/main/resources/mathjax/MathJax.js.

### Contact

If you’ve got any comments/queries about this plugin, feel free to email me at davebarton@cityinthesky.co.uk.

## 3 thoughts on “confluence-mathjax”

1. Ramakrishna Sharvirala says:

Hi-

I would like to upgrade this plug-in to support updated version of confluence by providing my services in contributing open source development

Regards
Ramakrishna

1. David Barton says:

Sounds good!

2. Yauhen Radyna says:

Hi David,

This is a very useful plugin. Though, it does not work as expected with Confluence 4.3.7. Inline formulas are showed on separate lines. The generated html code looks like this:

This is the test of the inline math formula –
$\lim_{x\to 0}\frac{\sin{x}}{x}=1$
— it doesn’t seem to stay inline.

I don’t know what is responsible for inserting extra paragraph breaks – the plugin or Confluence itself. Anyway, I don’t see plugin code responsible for inserting breaks, nor I see any obvious options regulating break insertion.