Subreddits similar to r/mathematics

901k subs

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/cheatatmathhomework

40k subs

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

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/askmath

12k subs

A subreddit for math questions. Do you have a math question? Can you help others with their math questions? Come join us!
https://reddit.com/r/askmath/

r/AskPhysics

33k subs

A subreddit to draw simple physics questions away from /r/physics. No real rules; ask away. If your basic physics question isn't answered in a day, you can post it to /r/physics if you mention that you didn't get an answer on /r/AskPhysics (unless it's a homework-related physics question).
https://reddit.com/r/AskPhysics/

r/badmathematics

35k subs

A place for poking fun at the bad mathematics that plagues the internet
https://reddit.com/r/badmathematics/

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/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/askscience

18m subs

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

r/programming

2m subs

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

r/mathmemes

40k subs

Give me some mathematical memes.
https://reddit.com/r/mathmemes/

r/matheducation

16k subs

Math education! r/matheducation is focused on mathematics pedagogy (the teaching of). Please avoid posts that are related to homework or other "How do I solve this?" type questions. There should be an emphasis on usefulness (such as good internet resources or ideas for how to teach a concept).
https://reddit.com/r/matheducation/

r/calculus

16k subs

https://reddit.com/r/calculus/

r/MachineLearning

769k subs

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

r/philosophy

14m subs

https://reddit.com/r/philosophy/

r/learnprogramming

1m subs

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

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/explainlikeimfive

17m subs

**Explain Like I'm Five is the best forum and archive on the internet for layperson-friendly explanations.** &nbsp; Don't Panic!
https://reddit.com/r/explainlikeimfive/

r/Python

419k subs

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

r/computerscience

94k subs

https://reddit.com/r/computerscience/

r/HomeworkHelp

81k subs

Need help with homework? We're here for you! The purpose of this subreddit is to help you learn (not complete your last-minute homework), and our rules are designed to reinforce this.
https://reddit.com/r/HomeworkHelp/

r/IAmA

19m subs

https://reddit.com/r/IAmA/

r/PhysicsStudents

14k subs

A place for physics students to talk about whatever!
https://reddit.com/r/PhysicsStudents/

r/ProgrammerHumor

920k subs

Dedicated to humor and jokes relating to programmers and programming.
https://reddit.com/r/ProgrammerHumor/

r/learnpython

240k subs

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

r/chemistry

715k subs

A community for chemists and those who love chemistry
https://reddit.com/r/chemistry/

r/chess

145k subs

Everything to do with chess. Game analysis, current events, and more!
https://reddit.com/r/chess/

r/science

22m subs

This community is a place to share and discuss new scientific research. Read about the latest advances in astronomy, biology, medicine, physics, social science, and more. Find and submit new publications and popular science coverage of current research.
https://reddit.com/r/science/

r/linux

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/