Subreddits similar to r/LaTeX

901k subs

87k subs

For Vim enthusiasts and anyone interested in Vim.
https://reddit.com/r/vim/

423k subs

All things Linux and GNU/Linux -- this is neither a community exclusively about the kernel Linux, nor is exclusively about the GNU operating system.
https://reddit.com/r/linux/

r/emacs

33k subs

The extensible, customizable, self-documenting real-time display editor.
https://reddit.com/r/emacs/

r/matlab

24k subs

Official MATLAB subreddit - a place to discuss the MATLAB programming language and its implementation.
https://reddit.com/r/matlab/

r/archlinux

100k subs

For users of the much loved Linux distro, Arch Linux.
https://reddit.com/r/archlinux/

r/unixporn

182k subs

Submit screenshots of all your *NIX desktops, themes, and nifty configurations, or submit anything else that will make ricers happy. Maybe a server running on an Amiga, or a thinkpad signed by Bjarne Stroustrup? Show the world how sexy your computer can be!
https://reddit.com/r/unixporn/

r/compsci

618k subs

Computer Science Theory and Application. We share and discuss any content that computer scientists find interesting. People from all walks of life welcome, including hackers, hobbyists, professionals, and academics.
https://reddit.com/r/compsci/

r/learnmath

135k subs

Post all of your math-learning resources here. Questions, no matter how basic, will be answered (to the best ability of the online subscribers).
https://reddit.com/r/learnmath/

r/Python

419k subs

news about the dynamic, interpreted, interactive, object-oriented, extensible programming language Python
https://reddit.com/r/Python/

r/Physics

887k subs

The aim of /r/Physics is to build a subreddit frequented by physicists, scientists, and those with a passion for physics. Papers from physics journals (free or otherwise) are encouraged. Posts should be pertinent, meme-free, and generate a discussion about physics. Please report trolls and intentionally misleading comments.
https://reddit.com/r/Physics/

r/programming

2m subs

Computer Programming
https://reddit.com/r/programming/

r/linuxquestions

107k subs

https://reddit.com/r/linuxquestions/

r/statistics

84k subs

This is a subreddit for discussion on all things dealing with statistical theory, software, and application. We welcome all researchers, students, professionals, and enthusiasts looking to be a part of an online statistics community.
https://reddit.com/r/statistics/

r/Ubuntu

124k subs

The Ubuntu community on Reddit
https://reddit.com/r/Ubuntu/

r/commandline

46k subs

This is for anything regarding the command line, in any operating system. All questions (including dumb ones), tips, and interesting programs/console applications you've found or made yourself are welcome. Linux / BSD / OSX / Windows CLI apps or questions or comments, we're happy to take them all!
https://reddit.com/r/commandline/

r/cheatatmathhomework

40k subs

https://reddit.com/r/cheatatmathhomework/

r/linux4noobs

133k subs

Linux introductions, tips and tutorials. Questions are encouraged. Any distro, any platform! Explicitly noob-friendly.
https://reddit.com/r/linux4noobs/

r/learnpython

240k subs

Subreddit for posting questions and asking for general advice about your python code.
https://reddit.com/r/learnpython/

r/AskAcademia

80k subs

This subreddit is for discussing academic life, and for asking questions directed towards people involved in academia, (both science and humanities).
https://reddit.com/r/AskAcademia/

r/MachineLearning

769k subs

https://reddit.com/r/MachineLearning/

r/GradSchool

75k subs

Discussion forum for current, past, and future students of any discipline completing post-graduate studies - taught or research.
https://reddit.com/r/GradSchool/

r/engineering

254k subs

The hub for all content related to the engineering discipline.
https://reddit.com/r/engineering/

r/linuxmasterrace

146k subs

A subreddit for Linux enthusiasts.
https://reddit.com/r/linuxmasterrace/

r/EngineeringStudents

210k subs

This a place for engineering students of any discipline to discuss study methods, get homework help, get job search advice, and find a compassionate ear when you get a 40% on your midterm after studying all night.
https://reddit.com/r/EngineeringStudents/

r/opensource

89k subs

A subreddit for everything [open source](http://en.wikipedia.org/wiki/Open_source) related.
https://reddit.com/r/opensource/

r/learnprogramming

1m subs

A subreddit for all questions related to programming in any language.
https://reddit.com/r/learnprogramming/

r/haskell

46k subs

The Haskell programming language community. Daily news and info about all things Haskell related: practical stuff, theory, types, libraries, jobs, patches, releases, events and conferences and more...
https://reddit.com/r/haskell/

r/askscience

18m subs

Ask a science question, get a science answer.
https://reddit.com/r/askscience/

r/rstats

29k subs

https://reddit.com/r/rstats/