r/askmath

183K archived posts · Oct 2008 – Sep 2026

Ask a Math Question

r/askmath

This subreddit is for questions of a mathematical nature. Please read the subreddit rules below before posting.

Created Sep 5, 2008

181KMembers (last snapshot)

183KArchived posts

Rules

Explain your post - show your efforts and explain what you are specifically confused with. Don't just say "I don't get this, help"
Stay on topic - this subreddit is for math questions; no how-to guides, or non math related questions
Make your question clear and concise - include steps you have tried
Homework policy - asking for help is okay, asking to be given the solution is not
Don't be a jerk - don't be obnoxious or rude
No post flooding - Limit your posts to 2 or 3 questions a day
No cheating - do not post questions from exams, tests, midterms, etc
Do not solicit or offer payments to complete your assignments or tests
Do not use ChatGPT in a question or an answer
Do not delete your question after receiving an answer

Don't just post a question and say "HELP". Post your question and outline the steps you've taken to solve the problem on your own. Beginner questions and asking for help with homework is okay. Asking for solutions without any effort on your part, is not okay. Help others, help you!

How to ask a good question

Give context and details to your question, not just the equation
Use proper terminology
Use proper spelling, grammar and punctuation
Show your work! Detail what you have tried and what isn't working
Re-read your post before hitting submit, does it still make sense

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 ∂ 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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