Linked Questions

49 votes
6 answers
4k views

How could Wolfram Research increase Wolfram Language adoption?

Introduction Hello, this is a more general question than is typically asked here. However, I chose to post it here because this seems to be the most active community for Wolfram Language / Mathematica ...
Alec Graves's user avatar
  • 1,058
22 votes
5 answers
2k views

Transform sphere to an ellipse in $\mathbb{R}^2$

In Lay's Linear Algebra and Its Applications textbook, he defines the matrix $$A=\begin{bmatrix} 4 & 11 & 14\\8 & 7 & -2 \end{bmatrix}$$ and claims that the transformation $T(x)=A x$ ...
David's user avatar
  • 14.9k
17 votes
6 answers
5k views

Vectors with a certain magnitude in Mathematica

For a user-specified magnitude, is there a way to have Mathematica produce any 3D vector with that magnitude?
user avatar
17 votes
5 answers
5k views

How to generate approximately equally spaced points efficiently

I don't very content with current method.So a better solution is expected still.I hope it meet two conditions in following. That space is approximately equivalence. We can control how many points to ...
yode's user avatar
  • 26.7k
14 votes
5 answers
3k views

Triangular mesh of random points on a sphere

My employer has a new logo (shown below). I do not have information on how this was created (as it was done by an outside company), though I'm fairly sure it was not done in any formal mathematical ...
MSC02476's user avatar
  • 699
18 votes
3 answers
2k views

How to create this spikey in Mathematica?

I came across this post while messying around the StackExchange mobile. I think this thing can be easily done by Mathematica as well but I'm not an expert in geometric field. Can anyone give some ...
Wjx's user avatar
  • 9,558
36 votes
3 answers
2k views

Fast spherical polygon

Cross posted on Wolfram Community Question Given a list of points on a sphere and the sphere's radius, I'd like to plot a spherical polygon with those points as vertices. And this needs to be fast, ...
Kuba's user avatar
  • 137k
12 votes
4 answers
1k views

Complex result for real vectors in VectorAngle

Bug introduced in 10.0 or earlier and fixed in 12.0.0 or earlier I was expecting a real angle using VectorAngle when passing real valued vectors, but I obtained a ...
Adam Law's user avatar
  • 143
18 votes
2 answers
965 views

How to speed up `RotationMatrix`?

I frequently run into the situation that I have to apply RotationMatrix to a huge bunch of 3D vectors and angles for numerical computations. On one hand, the syntax ...
Henrik Schumacher's user avatar
7 votes
2 answers
1k views

Draw an arbitrary convex polyhedron without excess diagonals drawn

I want to draw a set of convex polyhedrons whose vertices are defined by spherical coordinates on the surface of a unit sphere. Currently I followed the advice from here: https://mathematica....
Anixx's user avatar
  • 3,585
3 votes
2 answers
166 views

Negative Correlation Distance

Bug introduced in 8.0 or earlier and fixed in 11.2.0 CorrelationDistance[{-53.0, 4.3}, {-23.0, 5.4}] is a negative number. It is close to zero, to be sure, but ...
Scott Guthery's user avatar
3 votes
2 answers
269 views

How can you calculate a volume from a closed countour from ListContourPlot3D

I have a set of data from which I'm able to generate closed contours (surfaces) in with ListContourPlot3D. I would like to determine the (approximate) volume of these surfaces as well as their surface ...
Will Bertsche's user avatar
0 votes
0 answers
538 views

How to evenly distribute points inside a sphere?

SpherePoints[] gives me a fairly even distribution of points on the surface of a sphere. However, following this, I can have a much better distribution (although ...
user36426's user avatar
  • 3,335
4 votes
1 answer
154 views

Analogue of SpherePoints in higher dimensions?

I'm looking for an analogue of SpherePoints that works in dimensions higher than 3, has this been created already? A random sample from unit ball will be ...
Yaroslav Bulatov's user avatar
1 vote
0 answers
85 views

Algorithms used in GraphPlot and GraphPlot3D

Coppied from Mathematica's help: Algorithms to be used in GraphPlot and GraphPlot3D can be specified using the Method option, either as Method->"name" or Method->{"name",...
azerbajdzan's user avatar
  • 16.6k

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