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94,867
questions
1
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How to port Matlab/Python's Multivariate FoxH implementation in Mathematica?
Ref code
MATLAB
Python
My implementation
Are there some mistakes in my Mathematica code? Any help would be greatly appreciated.
Attempt Version 1 (❌)
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- 1,603
0
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0
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18
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1
vote
1
answer
27
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Showing symbolic equality up to some transformation of variables
I'm trying to show that there exists some transformation of variables between the following two expressions such that they are equivalent.
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1
vote
0
answers
46
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Testing whether two expressions are mathematically equivalent
I have two mathematically equivalent expressions. But I can't find the code to test whether they are.
I tried this
SameQ[20 + 10 t/(t + 2), 30 - 20/(t + 2)]
The ...
- 5,585
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votes
0
answers
34
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How can I convert a ListContourPlot plot to a Latex contour plot?
I want to convert a Mathematica contour plot to have the appearance of being generated using LaTeX.
I am using a CSV file called unCon01new2.csv that consists of 3 columns (with no header): theta, phi,...
- 121
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41
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Select[Sin[x],FreeQ[#,x]&] returns Sin[]?
I'm writing a function that extracts all functions that depend on a given variable from expression. Mid-writing I encountered this:
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- 1,419
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0
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20
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Alternative for HatchFilling[] that doesn't alter the appearance of the plot
In Mathematica v13.0.1, I'm using the "Filling->" option in a plot like this
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- 157
1
vote
1
answer
26
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Unwanted Oscillation in Solution Occurs When Solving Poisson-Nernst-Planck Equation
This is a follow-up post for this question. I am trying to solve the Poisson-Nernst-Planck equation in the form similar to eqns 9 and 10 in this research paper.
Different than the previous question, ...
- 379
1
vote
0
answers
64
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Evaluating step functions
Please guys, how do I tell Mathematica to return f(a-b)= 1 if a=b and 0 otherwise?
This means that f(0)=1 and f(x)=0 for x>0.
- 31
2
votes
1
answer
35
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Non-ASCII characters are not imported correctly in MetaInformation (Solution for FLAC attached)
When importing meta information of music files, non-ASCII characters are not imported correctly. It seems that only the last byte is imported.
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- 463
2
votes
2
answers
95
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Setting position of PlotLegends affect position of PlotLabel
Plot[{Sin[x], Cos[x]}, {x, 0, 6}, ImageSize -> 400,
Frame -> True,
FrameLabel -> {"x", "y"},
PlotLabel -> "a"]
gives
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- 17.2k
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0
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40
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NDsolve Error "Cannot be used as a variable." [closed]
I've looked at the other NDsolve Error questions and none have helped.
This is my code:
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- 1
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0
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28
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Continuous Wavelet Transform Coefficients
I am trying to reconstruct the continuous wavelet transform coefficients from Mathematica without using the ContinuousWaveletTransform function. I need to create this reconstruction for my data in a ...
- 9
1
vote
0
answers
40
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Minimum Distance to Fly to Each European Country
Help me plan my holiday. These are all my available flights that I can get on airline points. I'm trying to work out what is the shortest distance to travel if I want to go to each every European ...
- 4,558
0
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0
answers
17
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Function LaplaceGaussian Filter -> What exactly is standardized, if this option is chosen?
I try to figure out what the option Standardized->True for function LaplacianGaussianFilter exactly means. I understand that it guarantees that the sum over the Kernel is exactly zero. But what ...
- 13