Who can introduce me some popular forums about maths？?

Who can introduce me some popular forums about maths？?
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1 Answer

Answer :

answer:Well, there are a few good math questions right here on ask-public. There are also plenty of mathematicians. Here’s an interesting math discussion I started not too long ago: http://www.ask-public.com/158130/if-1901111111-2902222222-3903333333-and-so-on-then-how-come-9909999999/. Option 2: Stackexchange.
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