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Mathematics
Qiaochu Yuan's user avatar
Qiaochu Yuan's user avatar
Qiaochu Yuan's user avatar
Qiaochu Yuan
  • Member for 13 years, 11 months
  • Last seen this week
  • Oakland, California, USA
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Ex-graduate student. I apologize in advance for some of my old writing.

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605
Does $\pi$ contain all possible number combinations?
Oct 18, 2012
552
Mathematical difference between white and black notes in a piano
Nov 24, 2010
324
Intuition for the definition of the Gamma function?
Aug 27, 2010
294
V.I. Arnold says Russian students can't solve this problem, but American students can -- why?
Dec 31, 2015
223
What should be the intuition when working with compactness?
Apr 24, 2013
213
Prove that $C e^x$ is the only set of functions for which $f(x) = f'(x)$
Aug 17, 2011
193
Is infinity a number?
May 1, 2011
168
How many sides does a circle have?
Apr 8, 2011
167
What properties of busy beaver numbers are computable?
Jan 6, 2013
166
Is it possible to represent every huge number in abbreviated form?
Aug 26, 2010
Top Meta posts
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I am resigning as moderator
94
Downvoted by another user for the wrong reasons.
92
Proposal: ban verbatim homework questions which have no accompanying text
69
What should one do when one's question has been answered in the comments?
59
Are "please check my proof" type of questions proper?
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276
Examples of common false beliefs in mathematics
204
What are your favorite instructional counterexamples?
194
Most harmful heuristic?
183
How do I make the conceptual transition from multivariable calculus to differential forms?
173
What are the most misleading alternate definitions in taught mathematics?