Can I post a how-to guide about my math-related product?
No. The rule "Stay on topic." explicitly says do not post how-to guides or other off-topic material. This is a place for math questions only.
Subreddit guides
r/askmath rules, stats, and what to post
A source-backed Rankhog guide to r/askmath: public rules, community context, posting fit, and startup-promotion risk before you publish.
By Anthony Riera, founder and operator of Rankhog.
Subreddit guides combine public Reddit source URLs, captured rules, visible verification dates, and Rankhog's account-safety workflow.
Current public stats
- Members
- 245,850
- Verified
- September 18, 2026
- Category
- Science and research communities
Rules can change, so Rankhog keeps verification dates and the original public Reddit sources visible.
Rule summary
- Explain your post.: - Please do not just post problems without context. You are required to explain your attempts at solving the question, or where *specifically* you are confused. - Do not ask users to "just give the answer" rather than helping you. - Rule breaking posts will be removed.
- Make your question clear.: - Please make your question clear and legible, so that others may help you. - Please include a picture if needed. For comments or chat posts, you can upload to a site like www.imgur.com and then post the link here.
- Stay on topic.: - This is a subreddit for math questions. If your question isn't about math, please post in an appropriate subreddit. - Do not post how-to guides or other off-topic material. - Do not post "how many jellybeans are in the jar?" type questions. - Do not post about memes or viral "challenge" questions.
- Don't be a jerk.: - Do not be rude to users trying to help you. - Do not be rude to users trying to learn. - Blatant rudeness may result in a ban. - As a matter of etiquette, please try to remember to thank those who have helped you.
- No flooding.: - Do not flood the subreddit with multiple posts. You may post one or two questions per day.
- No cheating: - Do not post questions from exams, tests, midterms, certifications, etc. - No brain dumps or links to test answers - No solicitation of payment for help or answers
- Use the proper flair: - The flairs help commenters assist you by providing additional context. - Flairs are editable, so that if the flair doesn't exactly fit, you can edit it. - Please report wrong flairs, and a mod will come and adjust it.
- No AI: Do not post LLM-generated "theories" or use LLMs to answer questions.
- No hit and run: Users are expected to engage meaningfully with the community. Deleting your post after receiving answers or assistance is not allowed. When you post a question, please remain active in the discussion, respond to comments, and acknowledge the help you receive. Remember, your questions and the answers provided can be valuable resources for future users seeking similar information. Deleting posts removes this knowledge from the community, making it harder for others to learn.
Works well
- Ask a real math question you are genuinely stuck on, show your work in the post body, use the correct flair, and stay to thank people who help you.
- Answer someone else's math question thoroughly and clearly, with no promotion attached, to build goodwill in the community over time.
- If your product involves a math problem you are solving, frame a post around the math itself, show your attempts, and let any link serve the question rather than the product.
Avoid
- Posting how-to guides or off-topic material, since the rule "Stay on topic." forbids it.
- Posting questions from active exams, tests, midterms, or certifications, which violates "No cheating".
- Using an LLM to generate theories or answers, since "No AI" bans this entirely.
- Deleting your post after people answer it, because "No hit and run" prohibits that and it can get you banned.
- Posting more than two questions in a day, which breaks "No flooding".
- Offering or soliciting payment for help or answers, which is banned under "No cheating".
What r/askmath Is For
This community is for questions of a mathematical nature. People come here to ask math questions and get help from others. The public description says it plainly: this subreddit is for questions of a mathematical nature. The rules reinforce that by saying if your question is not about math, you should post elsewhere.
Rules That Matter Before Posting
The rule "Stay on topic." is the one that decides whether a marketing-adjacent post survives, because it bans how-to guides and off-topic material outright. The rule "No cheating" bans solicitation of payment for help or answers, which closes the door on any paid promotion angle. The rule "No AI" bans LLM-generated content entirely, so you cannot use AI to draft your posts or answers. The rule "No hit and run" requires you to stay and engage after posting, which means you cannot just drop a question and leave. The rule "Explain your post." requires you to show your work and explain where you are stuck, so vague or bait questions will be removed.
What To Post
A good post here is a genuine math question where you show your work and explain exactly where you are stuck. The rule "Explain your post." requires you to share your attempts or point to the specific part that confuses you. You must also use the proper flair, since "Use the proper flair" is a stated rule and flairs are required. If you are a founder with a math-related product, the only respectful path is to participate as a real learner or helper. Ask a real question you are working through, or answer someone else's question well if you have the knowledge. Any link you include should serve the math question itself, not promote a product. You must stay active in the thread and respond to comments, because "No hit and run" expects meaningful engagement.
What To Avoid
Do not post how-to guides or any off-topic material, because "Stay on topic." forbids it. Do not post jellybean-counting questions, memes, or viral challenge questions. Do not post questions from exams, tests, midterms, or certifications, and do not share brain dumps or test answers, because "No cheating" bans all of that. Do not offer or solicit payment for help. Do not use an LLM to generate theories or answers, because "No AI" bans it. Do not delete your post after receiving answers, because "No hit and run" prohibits that and the answers are meant to help future users too. Do not post more than one or two questions per day, since "No flooding." sets that limit. Do not be rude to anyone, because "Don't be a jerk." says blatant rudeness may result in a ban.
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Common questions about r/askmath
Can I include a link in my post?
Yes, the policy brief confirms links are allowed. But the link must serve a genuine math question and follow all other rules, especially "Stay on topic." and "No cheating."
Can I ask more than one math question per day?
Yes, but only one or two per day. The rule "No flooding." sets that limit, and each post must follow "Explain your post." by showing your work.
Can I use AI to help draft my question or answer?
No. The rule "No AI" says do not post LLM-generated theories or use LLMs to answer questions. All content must be human-written.
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