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Dec
12
answered What's the area of the shape defined by all points whose distances from two focal points multiply to give the same product?
Dec
11
answered What is locus of a fixed point on a circle of radius $r$ rolling over the curve $y=\sin x$?
Dec
11
answered x(u,v), y(u,v), z(u,v) parametric equations for a special cycloid
Dec
11
answered Characterizations of cycloid
Dec
11
answered Circle Rolling on Ellipse
Dec
10
answered Roll one ellipse on another: Locus of center ever a circle?
Oct
31
answered Eigenvectors and ''eigenrows''
Oct
24
answered How can I plot curves relative to other curves?
Oct
8
answered A golden ratio series from a comic book
Oct
8
asked A golden ratio series from a comic book
Aug
1
answered Colleague Matrix
Jul
14
answered Analytic continuation of primality function
Jul
11
answered Why do siamese magic squares have real eigenvalues, symmetric around zero?
May
1
answered What is $f_\alpha(x) = \sum\limits_{n\in \mathbb{N}} \frac{n^\alpha}{n!}x^n$?
May
1
answered Derivatives of the Struve functions $H_\nu(x)$, $L_\nu(x)$ and other related functions w.r.t. their index $\nu$
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 $f(x)=1+\sin(x)/x$