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May
6
revised A quick way to determine whether a number is prime by hand
added 355 characters in body
May
6
revised A quick way to determine whether a number is prime by hand
added 513 characters in body
May
6
revised A quick way to determine whether a number is prime by hand
added 513 characters in body
May
6
answered A quick way to determine whether a number is prime by hand
May
2
awarded  Announcer
Apr
29
answered Bifurcation values for logistic map
Apr
14
awarded  Enlightened
Apr
14
awarded  Nice Answer
Apr
4
answered Is it possible to fit any regression line to a set of data points?
Apr
3
awarded  Notable Question
Mar
23
awarded  Enlightened
Mar
23
awarded  Nice Answer
Mar
5
comment Game Theory/Bayesian approach to a bluffing game
@DanielR Pretty sure (although open to being proved wrong). Player 1's expectation, if he bluffs with probability $q$, is $E = 0.2(2p + (1-p)) + 0.8(q(-p + (1-p)))$ which simplified to $E=0.2(1+p) + 0.8q(1-2p)$. Therefore if $p>0.5$ the second term is negative, so $q=0$ maximizes the expectation. If $p<0.5$ the second term is positive, so $q=1$ maximizes the expectation. This assumes that player 2 never changes their strategy, of course.
Mar
5
asked Game Theory/Bayesian approach to a bluffing game
Mar
5
answered Probability Discrepancy in drawing 2 cards from a Deck of 52
Mar
4
comment What is equivalence of $(p \vee q) \wedge \neg (p \vee q)$?
Let $a = p \vee q$. Then you have $a \wedge ¬ a$.
Feb
25
awarded  Self-Learner
Feb
21
comment How do you describe your mathematical research in layman's terms?
@Arthur Feynman was speaking about theoretical physics, which deals with quarks, gluons, hadrons, bosons and other things that most people aren't familiar with. His book QED succesfully imparted the flavour of quantum electrodynamics and the path integral formalism to me as a sixteen year old. I don't think we should shrug off our responsibility as mathematicians so easily.
Feb
18
comment Standard Deviation Annualized
@kookster Yes, still true (note that with only 30 data points the confidence intervals on your measured standard dev will be quite wide).
Feb
1
comment integration method
This transformation gives better convergence properties for the algorithm described in your code (which is essentially Gaussian quadrature at random locations) but that's not what I understand by the "hit and miss" method (generating random $(x,y)$ pairs and checking to see if they fall into the region being integrated).