47,962 reputation
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location Illinois
age 39
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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


May
23
awarded  Good Answer
May
21
awarded  Good Answer
May
20
comment Properties of the multivariate normal distribution
Doesn't 1. hold true simply by definition?
May
20
revised Properties of the multivariate normal distribution
added 20 characters in body
May
18
awarded  Yearling
May
14
awarded  Nice Question
May
5
comment Probability density function expected values given a cumulative distribution function
HINT: Write the definition of the expectation as an integral, and integrate by parts.
May
5
revised Probability density function expected values given a cumulative distribution function
deleted 92 characters in body; edited tags
May
4
reviewed Leave Open Elementary Analysis: Studying for Final
May
4
reviewed Close Riemann Integrable
May
4
reviewed Close Find the limit of the following
May
4
reviewed Close Number of solutions of equation
May
4
reviewed Close show that $f_n$ is bounded
May
4
reviewed Close Definition of the scaling dimension matrix?
May
4
reviewed Close Discrete On Recurrence Sets
May
4
reviewed Close How to find the average value of $y = e^x$ between $x = e$ and $x = 2e$?
May
4
reviewed Close need help With Numbering system
May
3
reviewed Close Need to check if a t- test should be used instead of a z -test here!
May
3
reviewed Close Proof for a series given
May
3
reviewed Close Interesting mathematical problems for 1st year university students