This is a tutorial series to help you set up the Vim or Neovim text editors for efficiently writing math in LaTeX. Here is an example of what I have in mind:
The blue bar with white text shows the keys I am typing, the bottom shows the resulting LaTeX source code, and the top is the compiled output. More on how this works below.
Goal of this guide: make writing LaTeX as easy (fast, efficient, enjoyable…) as writing math by hand. Tech stack: the Vim text editor using the UltiSnips or LuaSnip snippet plugin and the VimTeX plugin’s LaTeX editing features. The series should help if you…
What it costs you: everything in the guide is free, but it will cost you time and effort. You can skim through the guide in about 15-30 minutes; a closer read-through might take a few hours; and you’ll realistically need a few weekends (or perhaps a few weeks if you’re new to Vim) of dedicated focus and effort to become fully functional. From that point reaching the speed in this page’s GIFs would probably take months of practice.
Covers prerequisites for getting the most out of the series, along with references that should get you up to speed if needed.
Vim’s ftplugin system
Introduces Vim’s filetype plugin system, which will help you understand the VimTeX plugin.
The VimTeX plugin
The excellent VimTeX plugin is the reason to use Vim over another LaTeX editor.
How to compile LaTeX documents from within Vim.
How to integrate Vim and a PDF reader for viewing LaTeX documents.
A Vim configuration guide explaining the key mappings and Vimscript functions used in this tutorial.
As concrete evidence that the techniques in this tutorial work, here are 1500+ pages of typeset physics notes from my undergraduate studies, most of them written during university lecture in real time (although grammar and style were improved later). Here are some examples of what these notes look like:
And here are more GIFs showing that LaTeX can be written at handwriting speed:
This is actually a little faster than I can write by hand—try taking out a pencil and paper and see if you can keep up! (Yes, I know I’m cheating by throwing in a bunch of hard-to-handwrite integrals.) If you like, you can see more examples on YouTube.
Credit where credit is due: the above GIFs are inspired by Gilles Castel’s video Fast LaTeX editing with Vim and UltiSnips—it is beautifully done and I encourage you to watch it.
By the way: the seminal work on the subject of Vim and LaTeX, and my inspiration for attempting and ultimately succeeding in writing real-time LaTeX using Vim, is Gilles Castel’s How I’m able to take notes in mathematics lectures using LaTeX and Vim. You’ve probably seen it on the Internet if you dabble in Vim or LaTeX circles, and you should definitely read it if you haven’t yet.
This series builds on Castel’s article by more thoroughly walking you through the technical implementation details (e.g. the details of setting up a PDF reader with forward and inverse search, how to use the VimTeX plugin, how to write Vimscript functions and key mappings, how Vim’s
ftplugin system works, how to compile LaTeX documents, and so on).
Here is an overview of the setup used in this series:
github.com/ejmastnak/dotfiles, where you can find both my main Neovim config and a smaller Vim config for testing Vim-specific inverse search features for this series.
If you have ideas for improving the series, I will quite likely implement them, appreciate your input, and give you a shoutout for your contributions. Feedback is welcome and appreciated.
Shoutouts to previous readers: many thanks to Andrey Rukhin, Merlin Büge, Albert Gu, Pano Otis, Jason Yao, @Glirastes, Daniele Avitabile, Kai Breucker, Maxwell Jiang, @lodisy, and @subnut for catching mistakes and offering good ideas on how improve this series.
Send me an email! Seriously, if this material helped you, it will make my day to know. I love hearing from readers, and you’ll almost certainly get a message back from me.
The original writing and media in this series is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.