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visits member for 3 years, 3 months
seen Jan 27 at 21:21

Sep
13
awarded  Enlightened
Feb
11
awarded  Nice Answer
Sep
11
awarded  Yearling
Mar
8
comment What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)
This is fantastic.
Feb
17
awarded  Custodian
Feb
17
reviewed No Action Needed Find the distribution of X, EX, and VarX.
Feb
15
comment Paul Erdos's Two-Line Functional Analysis Proof
@gnometorule: The "open problems homework" anecdote actually happens to be true, if not as romanticized: snopes.com/college/homework/unsolvable.asp
Feb
15
comment Real Analysis Inequality Questions
It's easier to work with everything at once. For (a), since you've noticed that $x\cdot y - x\cdot z=||x||(||y||cost-||z||cosk)$, you could use the triangle inequality: $|||x||(||y||cost-||z||cosk|<2(||y||+||z||)<2(3+4)=14$. It looks good to me otherwise.
Nov
26
comment What sample size do I need to justify my suspicions?
(Note that this depends on the degree of certainty [e.g. 95%] you require before stating your conviction, which could depend on a number of things. See also: xkcd.com/1132)
Nov
26
awarded  Critic
Nov
26
comment Convergence proof-how to apply this theorem?
It's bounded because it can only receive two values: 0 and -1.
Nov
6
comment Methodology to solve a Math IQ puzzle?
Got it, thanks. I misunderstood you at first.
Nov
6
comment Which side has winning strategy in Go?
A rare diplomatic solution :).
Nov
5
comment Methodology to solve a Math IQ puzzle?
(This is a laaaate question), how do you consider the remainders?
Sep
11
awarded  Yearling
Jun
4
awarded  Nice Answer
May
22
comment Reasoning Aptitude
Thanks for prettifying the answer, Marvis. I'm awful with Latex :).
May
22
revised Reasoning Aptitude
added 12 characters in body
May
22
answered Reasoning Aptitude
Dec
6
revised Probability of being late
edited body