Linked Questions
2
votes
2
answers
156
views
Use method "ExactAlgebraics" of PossibleZeroQ for Series zero test
I am trying to compute a series expansion around infinity with very large numerical, but entirely algebraic coefficients, and I keep running into zero test errors, which look exactly like the ones ...
- 3,535
5
votes
2
answers
91
views
Move definition from one context to Global`
Suppose we have the following package ABC.wl.
BeginPackage["ABC`"]
Begin["DEF`"]
f1 = 0;
f2[x_] := x + 1
End[]
EndPackage[]
...
- 53
5
votes
1
answer
114
views
How do I remove the context from help messages
When using ?? I get the results which the context included. While technically accurate it makes the code difficult to read.
The following
...
- 165
8
votes
1
answer
196
views
AndersonDarlingTest and DistributionFitTest Leaking Memory
I believe AndersonDarlingTest and probably all other tests are keeping a copy of data somewhere and not freeing it:
...
- 13.8k
4
votes
1
answer
334
views
Import audio in uLaw format?
How do I import a uLaw-format audio file into Mathematica? Here's an example:
hello-world.ulaw
For reference, here's the same file in wav format:
hello-world.wav
As I understand it, the uLaw ...
- 625
2
votes
2
answers
114
views
5
votes
0
answers
282
views
Undocumented function SumOfSquaresReps
There is an interesting (and documented) number-theoretic function in MMA called PowersRepresentations[$n$, $k$, $p$].
It gives the distinct representations of the integer $n$ as a sum of $k$ non-...
- 3,670
3
votes
0
answers
343
views
Why is my parallel version of `DensityPlot` slow?
I am exploiting the possibility to parallelize DensityPlot.
This is my naive implementation
...
- 17.4k
4
votes
0
answers
229
views
DownValues for Built-in Functions
N.B. I have bitten the bullet, and I am going through Leonid Shifrin's "Mathematica Programming: An Advanced Introduction." (Which needs no introduction in this forum)
One question I have: could one ...
- 4,436
3
votes
1
answer
181
views
Inspecting Mathematica object
I'm using ProofObject for my question, but it applies to other objects too.
FindEquationalProof returns ...
- 291
2
votes
0
answers
226
views
Gradient Filter Function
I am trying to understand EXACTLY what the GradientFilter function in Mathematica is doing. As far as I can tell, it appears to be doing a convolution of a first derivative of a Gaussian with the ...
- 491
2
votes
0
answers
230
views
Variational derivative of a functional depending on multiple functions
I wanted to use the VariationalD command to calculate a list of variational derivatives.
A simple example is the following and it works perfectly fine.
...
user49048
2
votes
1
answer
94
views
Certainty of the New Vertex Name after using EdgeContract
It appears that when I use EdgeContract on an undirected graph, the vertex that is the result of contracting an edge is always named the smaller of the two vertices....
- 593
1
vote
0
answers
201
views
Generating a watertight mesh for a "thickened wireframe"
Given the ongoing improvements in 3D mesh generation (currently using 11.3), I'm trying to find a robust means for producing a "thickened wireframe" of a given mesh, where the faces are ignored and ...
- 51
1
vote
1
answer
110
views
Implementation of ShearingMatrix
How does Mathematica implement ShearingMatrix?
In other words given the parameters $\theta$, $n$ and $v$, what is the formula behind it?
- 315