About this List of Online Communities
This list of online communities is dedicated to discussing the topic of Math.
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r/math on reddit
This subreddit is for discussion of mathematical links and questions.
Art of Problem Solving
Art of Problem Solving creates educational materials for motivated students in grades 2–12. The company's books, classes, and online resources help students become creative, successful problem solvers. The website contains a community forum that is available to all that have math questions.
r/learnmath on reddit
Post all of your math-learning resources here. Questions, no matter how basic, will be answered (to the best ability of the online subscribers).
MathOverflow is a question and answer site for professional mathematicians. Anybody can ask a question. Anybody can answer. The best answers are voted up and rise to the top.
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