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 Yearling
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Dec
9
asked Solution to $\frac{\partial G}{\partial t}=(1-s)\left(-k_1G+k_2\frac{\partial G}{\partial s}\right)$
Nov
9
awarded  Yearling
Oct
11
accepted Why can I exchange the order of integration in a multiple Ito stochastic integral?
Oct
10
comment Why can I exchange the order of integration in a multiple Ito stochastic integral?
In the portion where I set W=s^2, I am not talking about stochastic integrals, but instead just a regular integral, so your criticisms do not make sense.
Oct
10
comment Why can I exchange the order of integration in a multiple Ito stochastic integral?
$(s+ds)^2 - s^2 = 2s ds + ds^2 = 2s ds$
Oct
10
asked Why can I exchange the order of integration in a multiple Ito stochastic integral?
Oct
10
awarded  Informed
Sep
19
comment Demystify integration of $\int \frac{1}{x} \mathrm dx$
I wrote this blog post about it a while ago. arcsecond.wordpress.com/2011/12/17/… My blog says people followed a link from here to there, but I can't find that link on this page, so here it is. It takes a picture-based approach to the problem.
Feb
17
awarded  Popular Question
Feb
14
awarded  Popular Question
Feb
9
awarded  Great Answer
Feb
4
awarded  Good Answer
Feb
2
answered Cannot understand this part from the textbook
Jan
31
awarded  Good Answer
Jan
31
awarded  Mortarboard
Jan
31
comment Find five positive integers whose reciprocals sum to $1$
@gmline This wasn't supposed to be a method for enumerating all the answers or anything like that; just a way to approach it visually that might help for some kids.
Jan
31
awarded  Nice Answer
Jan
31
answered Find five positive integers whose reciprocals sum to $1$
Nov
29
revised What's the expected value of a lottery ticket?
spelling, minor edit
Nov
29
accepted What's the expected value of a lottery ticket?