Neil G
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 May31 comment zeroing out lower-order terms in generating function Awesome! Generating functions are the first time in my adult life that math felt like magic. May31 accepted zeroing out lower-order terms in generating function May31 comment zeroing out lower-order terms in generating function @anon: There are other operations available, but I don't know what they are. May31 revised zeroing out lower-order terms in generating function added 205 characters in body May31 comment zeroing out lower-order terms in generating function @anon: I've added to my question to make it more clear. May31 asked zeroing out lower-order terms in generating function May18 comment Probability of Coins Flips @Sasha: shouldn't that symmetry argument be mentioned somewhere in the answer, or is it obvious? May1 awarded Excavator May1 revised Expectation of the maximum of IID geometric random variables Formatting May1 suggested approved edit on Expectation of the maximum of IID geometric random variables Apr22 accepted Dealing with many entities that need a symbol Apr21 revised Dealing with many entities that need a symbol added 10 characters in body Apr21 comment Dealing with many entities that need a symbol @AsafKaragila: I remembered seeing someone use Hebrew letters — they definitely have a good contrast against Latin and Greek letters. Apr21 asked Dealing with many entities that need a symbol Apr19 comment Manipulating ergodic Markov chains in order to make them non-ergodic @andry: I edited in response. Even a single edge is enough. If the original chain was ergodic, entering the absorbing state is inevitable. Apr19 revised Manipulating ergodic Markov chains in order to make them non-ergodic emphasizing point in response to edited question Apr19 answered Manipulating ergodic Markov chains in order to make them non-ergodic Mar25 comment Prove that there is a number $y \in \mathbb{R}$ in $[0,1]$ st $f(y) = y$ (It wasn't me…) Mar25 comment Prove that there is a number $y \in \mathbb{R}$ in $[0,1]$ st $f(y) = y$ Is it better to leave Daniel's hint or give the answer? Mar23 comment Pseudo Proofs that are intuitively reasonable @QiaochuYuan: Yes, it's a nice example of that. Thanks.