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visits member for 4 years
seen Jun 24 '13 at 0:06

No, his mind is not for rent
to any god or government.
Always hopeful, yet discontent.
He knows changes aren't permanent,
but change is.

— Rush, Tom Sawyer


Taking an externally-imposed and much-needed break from SE activities.

E-mail (flipped ROT13): zqd˙ʎʌuzʇ@ʇɐʌǝɥʇʌssqɹǝɥɟuɹʎɔ
Any code I've posted here I place under the WTFPL.


Jun
17
wiki created minimal-surfaces excerpt
Jun
17
wiki created minimal-surfaces description
Jun
2
answered How do I find the exact value of $\cos\frac{\pi}{12}\cos\frac{5\pi}{12}\cos\frac{7\pi}{12}\cos\frac{11\pi}{12}$?
Jun
2
answered Why does the $n$-th power of a Jordan matrix involve the binomial coefficient?
Jun
1
answered Parallel to line on $f(x)=1+\sin(x)/x$
Jun
1
answered Computing positive semidefinite (PSD) rank with mathematical software
May
30
answered $\frac{d^{\frac{1}{2}}}{dx^{\frac{1}{2}}}$, what does it mean?
May
29
answered What is the fastest way to find the characteristic polynomial of a matrix?
May
29
answered Regarding a Paper by Paul A. Clement on Tridiagonal Matrices
May
29
answered Can $\frac{n!}{(n-r)!r!}$ be simplified?
May
29
answered Can you recommend some books on elliptic function?
Apr
13
answered Formula with 2 points of inflection
Apr
13
answered Analytical approximation of an integral
Apr
13
answered Why the SVD is named so…
Apr
13
answered The Best of Dover Books (a.k.a the best cheap mathematical texts)
Apr
12
answered Why SVD on $X$ is preferred to eigendecomposition of $XX^\top$ in PCA
Apr
9
answered Zernike and Legendre polynomials
Apr
9
answered Algebraic way to change limits of integration of a double integral
Apr
8
answered Series $\sum\limits_{n=1}^\infty \frac{1}{\cosh(\pi n)}= \frac{1}{2} \left(\frac{\sqrt{\pi}}{\Gamma^2 \left( \frac{3}{4}\right)}-1\right)$
Apr
8
answered How to work out orthogonal polynomials for regression model