r/learnmath

280K archived posts · Nov 2009 – Sep 2026

Learn Math

r/learnmath

Post all of your math-learning resources here. Questions, no matter how basic, will be answered (to the best ability of the online subscribers).

Created Nov 29, 2009

369KMembers (last snapshot)

280KArchived posts

###[PSA] Set your post to "Resolved" when answered. | [PSA] Each post must include a specific title and description.

We're no longer participating in the protest against excessive API fees, but many other subreddits are; check out the progress among subreddits that pledged to go dark on 12 July 2023 and the top 255 subreddits (even those that never joined the protest).

Think r/math is too advanced?

Here, the only stupid question is the one you don't ask.

This is a subreddit for learning math, and can be seen as a sister subreddit to r/math. Post all your math-learning resources here. Questions, no matter how basic, will be answered (to the best ability of the online subscribers).

Follow reddiquette. Be civil and polite; this is meant to be an approachable community for discussion of reason and logic.

To receive the best help, please use the following format:

[Level Discipline] Sample topic question

EX: [High School Math] Quadratic Equations
EX: [University Statistics] Probability

• Include instructor prompts (if any). What does your instructor (or the text) want you to accomplish?

• Tell us what is holding you up. Where are you in the process? Provide those who help with as much information as possible.

• Include any equations or assumptions you are using, and descriptions of any attempts you have made.

We recommend using Imgur to upload images for linking inside posts.
Reddit Enhancement Suite allows Imgur URLs to be expanded inline but doesn't work so well for other image-hosts.
tips for typing math on Reddit

ChatGPT and other large language models are not designed for calculation and will frequently be r/confidentlyincorrect in answering questions about mathematics; even if you subscribe to ChatGPT Plus and use its Wolfram|Alpha plugin, it's much better to go to Wolfram|Alpha directly.

Even for more conceptual questions that don't require calculation, LLMs can lead you astray; they can also give you good ideas to investigate further, but you should never trust what an LLM tells you.

#/r/LearnMath Chatroom

####Join the unofficial IRC channel: #LearnMath on Freenode (no client required).

Not allowed:

• "Do this for me" posts

• personal information (Check your documents before posting.)

• offers or solicitations of payment in any form

• surveys (Take them to r/samplesize.)

• advertisements of any form

• posting of quizzes or lists of questions

• one-sentence posts (Have some respect for people who take time to answer your question and follow the posting rules.)

• image or video link-posts (Links to articles, Desmos, Wolfram|Alpha, and the like are fine; links to Twitter/X or Meta properties like Facebook, Instagram, and Threads are not.)

• being a jerk (Jerks get banned.)

###Using LaTeX

Type this as an example (replace the [-; with [; when typing):

`[-;e^{\pi i}+1=0;]`

You will see [;e^{\pi i}+1=0;] formatted as in a textbook if the MathJax UserScript is installed and working.

• You will need to install a UserScript loader first.

If your browser is so outdated or unusual that the linked advice doesn't work, consider these ideas.

Best read with

u/lewisje's list of math resources
list of interactive math websites
u/dancingbanana123's list of answers to common math questions
r/math
r/askmath
r/cheatatmathhomework
r/academiceconomics
r/LearnEngineering
r/checkthis

Discord for Math Study Groups

Other resources include

Khan Academy
Brilliant
Alcumus
CTY Online AP & College Math
ODE videos on YouTube
r/tutor
Compilation of Free online math resources
r/bibliographies
Prepform
[ World Mental Calculation] (https://worldmentalcalculation.com/learning-training/)
r/STEM_Study_Groups/
Discord for Math Study Groups

###Courtesy of r/math:

Basic Math Symbols

≠ ± ∓ ÷ × · − √ ‰ ⊗ ⊕ ⊖ ⊘ ⊙ ≤ ≥ ≦ ≧ ≨ ≩ ≺ ≻ ≼ ≽ ⊏ ⊐ ⊑ ⊒ ² ³ °

Geometry Symbols

∠ ∟ ° ≅ ~ ∥ ⟂ ⫛

Algebra Symbols

≡ ≜ ≈ ∝ ∞ ≪ ≫ ⌊⌋ ⌈⌉ ∘ ∏ ∐ ∑ ∧ ∨ ∩ ∪ ⨀ ⊕ ⊗ 𝖕 𝖖 𝖗 ⊲ ⊳

Set Theory Symbols

∅ ∖ ∁ ↦ ↣ ∩ ∪ ⊆ ⊂ ⊄ ⊊ ⊇ ⊃ ⊅ ⊋ ⊖ ∈ ∉ ∋ ∌ ℕ ℤ ℚ ℝ ℂ ℵ ℶ ℷ ℸ 𝓟

Logic Symbols

¬ ∨ ∧ ⊕ → ← ⇒ ⇐ ⇔ ∀ ∃ ∄ ∴ ∵ ⊤ ⊥ ⊢ ⊨ ⫤ ⊣

Calculus and Analysis Symbols

∫ ∬ ∭ ∮ ∯ ∰ ∇ ∆ δ ∂ Δ δ ε ∂ ‖ ℱ ℒ ℓ

Mathematical Greek Letters

𝛢𝛼 𝛣𝛽 𝛤𝛾 𝛥𝛿 𝛦𝜀𝜖 𝛧𝜁 𝛨𝜂 𝛩𝜃𝜗 𝛪𝜄 𝛫𝜅 𝛬𝜆 𝛭𝜇 𝛮𝜈 𝛯𝜉 𝛰𝜊 𝛱𝜋 𝛲𝜌 𝛴𝜎 𝛵𝜏 𝛶𝜐 𝛷𝜙𝜑 𝛸𝜒 𝛹𝜓 𝛺𝜔

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