48,577 reputation
462133
bio website linkedin.com/pub/…
location Illinois
age 39
visits member for 3 years, 4 months
seen 9 hours ago

I'm a mix of things, a physicist by education, I earn my living as a mathematician and programmer working at Wolfram Research. I thoroughly enjoy learning and discovery process.


“Technical skill is mastery of complexity, while creativity is mastery of simplicity”
— Erik Christopher Zeeman

Project Euler


Aug
27
revised How To Present Algebraic Topology To Non-Mathematicians?
added 117 characters in body
Aug
27
answered Probability: the average times to make all the balls the same color
Aug
27
revised A Markov Chain Problem.(Change the color of ball)
added 37 characters in body
Aug
26
awarded  Enlightened
Aug
26
awarded  Nice Answer
Aug
15
awarded  Enlightened
Aug
15
awarded  Nice Answer
Aug
10
awarded  Nice Answer
Aug
6
awarded  Popular Question
Jul
25
comment Is it possible that a randomized recursion has a nonzero probability of either converging or diverging?
Do you sample $X$ once and evaluate the recursion, or do you sample $X$ at each step of the recursion?
Jul
24
comment If $X,Y$ ~$U(0,1)$ what is the distribution of $Z=0.5x^{2}+0.5y^{2}$?
+1 Very good. Here is the plot of the density from W|A.
Jul
24
comment If $X,Y$ ~$U(0,1)$ what is the distribution of $Z=0.5x^{2}+0.5y^{2}$?
It seems this answers states what the distribution of $Z$ is not, rather than what it is.
Jul
22
awarded  Necromancer
Jul
21
awarded  Enlightened
Jul
21
awarded  Nice Answer
Jul
14
awarded  Good Answer
Jul
6
answered Alternating sum of a simple product of binomial coefficients
Jul
3
awarded  Nice Answer
Jul
2
awarded  Curious
Jul
2
awarded  Inquisitive