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2h
comment Are all limit points interior points in complex analysis?
The question in the title is different from the question in the post.
4h
comment What is the formal negation of the statement “There is much X in Y”.
There isn't much X in Y.
1d
comment Volume of partially filled spherical cap?
Duplicate of deleted question math.stackexchange.com/q/620661
1d
comment How can I use the Bullet-Physics's ray-cast normal to calculate angles for a object to lay on a surface?
Does this previous post answer your question?
2d
comment How can I use the Bullet-Physics's ray-cast normal to calculate angles for a object to lay on a surface?
So... you want to rotate the pizza so that its $z$ axis lies along the surface normal, is that right?
Jul
26
comment Law of Clavius explained
There are two possibilities: Either $P$, or $\lnot P$. But by the premise, if $\lnot P$, then $P$. So in either case, $P$.
Jul
26
comment Is “imposing” one function onto another ever used in mathematics?
If $g$ is constant this is known as a parallel curve.
Jul
24
comment How can we explain energy (or intensity) distribution mathematically?
en.wikipedia.org/wiki/Rendering_equation
Jul
23
comment Functions with real domain but complex range, do they have any use?
In general the result of the Fourier transform is such a function. In fact, elements of the Fourier basis (i.e. complex sinusoids) are examples, as are certain wavelets.
Jul
23
comment Probability of Punctures for a group of cyclists
Your friend is right: For a group of 10 cyclists, the expected value of the total number of punctures is 2.
Jul
23
comment Sampling points uniformly from arbitrary region.
Heck, even sampling uniformly from an ellipsoid is hard.
Jul
22
comment Convex and conic hull, geometric interpretation
I find that looking at pictures helps. P.S. The conic hull isn't the convex hull of $X\cup\{0\}$, because it doesn't have the restriction $\sum_i\lambda_i=1$. It is the set of all points that lie on any ray from 0 through a point in the convex hull of $X$.
Jul
22
comment Article writing: How to represent a matrix by its elements?
This notation is quite rare in my experience. You could say "$A$ is an $n\times n$ matrix with entries $a_{ij}$" or $$A = \begin{bmatrix} a_{11}&a_{12}&\cdots&a_{1n} \\ a_{21}&a_{22}&\cdots&a_{2n} \\ \vdots&\vdots&\ddots&\vdots \\ a_{n1}&a_{n2}&\cdots&a_{nn} \end{bmatrix}$$
Jul
21
comment Why is the wave equation second order
In some applied fields the PDE is also known as the advection equation.
Jul
21
comment Function Domain of cubic root
Click "Use the real-valued root instead". By default, Mathematica chooses the convention that is compatible with complex arguments.
Jul
21
comment How to describe the degree of symmetry of an object?
Wikipedia has a nice overview.
Jul
21
comment Generate random number according to any equation
<clippy>It looks like you're trying to do inverse transform sampling. Would you like some help with that?</clippy>
Jul
21
comment If the Chaos Game result is a Sierpinski attractor when the random seed is a sequence (Möbius function), does it imply that the sequence is random?
@Noah: For any point $p$ in the Sierpinski triangle there is an infinite sequence $s\in3^\omega$ such that the iterations under that sequence converge to $p$. A length-$n$ prefix of $s$, call it $s(n)$, will take any point in the convex hull of the Sierpinski triangle to within $O(2^{-n})$ of $p$. If for every $p$ and every $n$ the corresponding $s(n)$ appears in the sequence, then every point in the Sierpinski triangle is approached arbitrarily closely.
Jul
21
comment Formal definition of mesh.
A simplicial complex?
Jul
21
comment If the Chaos Game result is a Sierpinski attractor when the random seed is a sequence (Möbius function), does it imply that the sequence is random?
So your sequence is 123123123123... Does the finite sequence 11 appear in it anywhere?