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May
31
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.
May
31
accepted zeroing out lower-order terms in generating function
May
31
comment zeroing out lower-order terms in generating function
@anon: There are other operations available, but I don't know what they are.
May
31
revised zeroing out lower-order terms in generating function
added 205 characters in body
May
31
comment zeroing out lower-order terms in generating function
@anon: I've added to my question to make it more clear.
May
31
asked zeroing out lower-order terms in generating function
May
18
comment Probability of Coins Flips
@Sasha: shouldn't that symmetry argument be mentioned somewhere in the answer, or is it obvious?
May
1
awarded  Excavator
May
1
revised Expectation of the maximum of IID geometric random variables
Formatting
May
1
suggested approved edit on Expectation of the maximum of IID geometric random variables
Apr
22
accepted Dealing with many entities that need a symbol
Apr
21
revised Dealing with many entities that need a symbol
added 10 characters in body
Apr
21
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.
Apr
21
asked Dealing with many entities that need a symbol
Apr
19
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.
Apr
19
revised Manipulating ergodic Markov chains in order to make them non-ergodic
emphasizing point in response to edited question
Apr
19
answered Manipulating ergodic Markov chains in order to make them non-ergodic
Mar
25
comment Prove that there is a number $y \in \mathbb{R}$ in $[0,1]$ st $f(y) = y$
(It wasn't me…)
Mar
25
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?
Mar
23
comment Pseudo Proofs that are intuitively reasonable
@QiaochuYuan: Yes, it's a nice example of that. Thanks.