Geoff Oxberry
Reputation
Top tag
Next privilege 500 Rep.
Access review queues
 May 19 awarded Student May 19 asked How much algebra is necessary to understand Rudin's “Real and Complex Analysis”? Dec 15 awarded Caucus Oct 2 comment Expand $f(x) = x$ in a cosines serie If you use $-l$ to $l$, then because $x$ is an odd function, cosine is an even function, and the product of even and odd functions is odd, the cosine terms in your Fourier series will drop out, leaving you with only sine terms. Oct 2 answered Prove that the limit, $\displaystyle\lim_{x \to 1^+} \frac{x-3}{3 - x - 2x^2}$, exists. Sep 25 comment Wave Equation with Constant Boundary Conditions Welcome to SciComp! This question is a problem that doesn't require techniques in computational science, and it's probably a better fit for Mathematics Stack Exchange. Feb 24 comment The space spanned by the rows of the Kernel matrix. This question has been cross-posted on Computational Science Stack Exchange. See scicomp.stackexchange.com/q/10860/276. Feb 13 answered What is the practical impact of a matrix's condition number? Dec 29 awarded Autobiographer Dec 4 comment Transform derivative term of 2nd order Yes, this question probably should be migrated to Math.SE (if they want it). Feb 19 awarded Yearling Feb 15 answered Convexity of a function Apr 18 awarded Commentator Apr 18 comment How many significant figures are needed in base 2? @Must: I don't know yet. Let me consult with the math mods. Apr 18 comment How many significant figures are needed in base 2? Question is very close to a cross-post on scicomp.SE. Apr 4 awarded Citizen Patrol Apr 4 comment Contiguous prime numbers with MPI (Want more ideas for an efficient algorithm) Math.SE mods: Cross post on scicomp.SE. Apr 1 comment Contiguous prime numbers with MPI (Want more ideas for an efficient algorithm) scicomp.SE would also gladly take your question; we take lots of questions on MPI, and on the practical implementation of parallel algorithms. (I'm a mod on scicomp.SE.) Feb 10 comment Rapid approximation of $\tanh(x)$ I thought about that algorithm, too, until I saw the "no table lookup" part. Feb 9 comment Matrix-Square Root I thought about the polar decomposition method, too, when I looked at the problem, but then I thought about calculating it, looked it up, and came to a similar conclusion as J.M..