What is LaTeX in Slack?

LaTeX in Slack is a Chrome extension developed by Sophie Huiberts, and its main feature is "Render LaTeX in Slack chat.".

Extension Screenshots

Download LaTeX in Slack Extension CRX File

Download LaTeX in Slack extension files in crx format, manually install Chrome extensions in the browser, or share the crx files with friends to easily install Chrome extensions.

Extension Usage Instructions

Renders LaTeX math formulas in Slack.
Similar to the Chrome extension math-with-slackb, except this plugin uses
the KaTeX library instead of MathJax for better compatibility with the
latest version of Slack.

Usage instructions:
Mostly works like standard LaTeX.

Default delimiters are as follows (this avoids issues with dollar signs being used for other purposes):

Inline math:
$ .. $
$$ .. $$

Display math:
\[ .. \]
$$$ .. $$$

Alternatively, in the options of the extension one can also choose to work with the usual LaTeX delimiters:

Inline math:
$ .. $
$ .. $

Display math:
\[ .. \]
$$ .. $$

Newlines in formulas can be inserted with \newline. Double backslash \\ is ignored.

Blackboard bold letter shorthands:
\R is short for \mathbb{R}
\N is short for \mathbb{N}
\Z is short for \mathbb{Z}

Downloads:
Firefox: https://addons.mozilla.org/nl/firefox/addon/latex-in-slack/
Chrome: https://chrome.google.com/webstore/detail/latex-in-slack/pfcfelfnpbnboelkjedecjipaibpnfja

Troubleshooting:
1.
Slack uses _ for _italics_ and * for *boldface*. This can interfere with your LaTeX formatting if your message
has multiple underscores or asterisks in it.
The developers of Slack are not big on having a consistent way to escape these special characters, but you can try:
a) escaping using two backslashes: $$\bar\chi^{\\*}\\_W$$
A single backslash is interpreted by the LaTeX rendering library as part of a command, but two of them will be ignored.
b) putting spaces around it: $$\bar\chi^ * _ W$$

2.
Sometimes Slack does something funny to double space " " making the plugin unable to recognize a piece of LaTeX
that contains it, like $$\R $$.

Plugin by Sophie Huiberts and Bento Natura (2019-2020).
Option to choose $/$$/$$$ delimiters added by Nicolas Boumal (2020).

Licenced under the MIT licence.

katex.js is taken straight from the KaTeX project, from the url
https://cdn.jsdelivr.net/npm/[email protected]/dist/katex.js
as indicated by
https://katex.org/docs/browser.html

auto-render.js is adapted from the KaTeX project:
https://github.com/KaTeX/KaTeX/blob/master/contrib/auto-render/auto-render.js

This plugin is not associated with the KaTeX project
nor with Slack or Slack Technologies, Inc.

Extension Basic Information

Name	LaTeX in Slack
ID	pfcfelfnpbnboelkjedecjipaibpnfja
Official URL	https://chromewebstore.google.com/detail/latex-in-slack/pfcfelfnpbnboelkjedecjipaibpnfja
Description	Render LaTeX in Slack chat.
File Size	308 KB
Installation Count	3,528
Current Version	0.5.1
Last Updated	2020-11-30
Publish Date	2019-11-25
Rating	4.00/5 Total 5 Ratings
Developer	Sophie Huiberts
Email	[email protected]
Payment Type	free
Extension Website	https://github.com/sophiehuiberts/katex-with-slack
Supported Languages	en
manifest.json
{ "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx", "content_scripts": [ { "all_frames": true, "js": [ "content.js" ], "matches": [ ":\/\/.slack.com\/*" ] } ], "description": "Render LaTeX in Slack chat.", "manifest_version": 2, "name": "LaTeX in Slack", "short_name": "latex-slack", "options_ui": { "page": "options.html", "open_in_tab": false }, "browser_specific_settings": { "gecko": { "id": "{344e6ebd-84a3-422d-8460-b954d1bc6bf8}" } }, "permissions": [ "storage" ], "version": "0.5.1", "icons": { "32": "icon32.png", "48": "icon48.png", "128": "icon128.png" } }