4,479 questions
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Parallel Equations Expansion in TFORM
TFORM is considered a great tool for manipulating large and symbolic equations. In this thread, I’d like to share my optimization problem, which concerns a very simple operation — equations expansion.
...
- 1
1
vote
1
answer
92
views
Trouble Plotting short term Solution on Maple
I’m trying to solve a problem from Modern Mathematical Methods for Scientists and Engineers using Maple, specifically applying the Fokas method (Unified Transform) to the heat equation on the half-...
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0
answers
69
views
Evaluation of a function within a function in Mathematica
I apologise if the answer to my question is facile, but I'm new to Mathematica and normally use Matlab.
I have two variables that I define as follows:
delta = Sqrt[u^2 - 4DC(theta - lambda)];
xi = ...
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votes
0
answers
42
views
Customized Chart Element Function for Box Plots in Mathematica
I am trying to make a box chart for four data sets with the data points shown on each box. This can be done using the Chart Element Function (CEF). I need a custom pointstyling detailed below.
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votes
1
answer
89
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Legendre function comparison between mpmath and Mathematica
I am working on a project and I would like to make sure I use Legendre function correctly. I've made a simple comparison between mpmath and Mathematica and the results are different:
For mpmath in ...
user29990275
1
vote
1
answer
55
views
How to store the first parameter of Block in a variable?
Let's say I have a function
MyFunc[x_] := x + y
I can do this:
Block[{y = 1}, MyFunc[1]]
which gives the result 2 correctly.
Now, what to do if I want to save {y = 1} into a variable, something like
...
- 869
0
votes
0
answers
99
views
How to solve this complex equation in MATHEMATICA?
I am trying to solve a complex integral equation including an infinite continued fraction.
Continued fraction to order n=50
$Version
(*14.2.0 for Microsoft Windows (64-bit) (December 26, 2024)*)
...
- 101
1
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0
answers
149
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How fix error in Mathematica "NDSolve::ndsz: At t == ... step size is effectively zero; singularity or stiff system suspected" when using Manipulate?
I am trying to solve a nonlinear system of differential equations in Wolfram Mathematica using NDSolve and visualize the solution with Manipulate. However, I encounter the following error when running ...
0
votes
1
answer
59
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Generation of particular combinations
In Mathematica I implemented this simple code:
n = 8;
a0 = Range[0, n - 1];
a1 = Subsets[a0, {2}];
a2 = Subsets[a1, {2}];
a3 = Select[a2, Length[Union[Flatten[#]]] == 4 &];
a4 = Subsets[a3, {n/4}];...
user15916149
2
votes
1
answer
511
views
Running Wolfram Engine in Visual Studio Code
I downloaded the Wolfram Engine and have verified that it works by running it in the terminal.
I also downloaded a VSC extension for the Wolfram Langauge: https://github.com/WolframResearch/vscode-...
- 160
1
vote
0
answers
65
views
Reading and resaving in a file a matrix with the same name but with different dimensions with Mathematica
My main code runs a large program and saves the results in a text-like notebook (Put[...] & Save[...]) that contains result matrices, like e.g.,
tab1 = {{1, 2, 3, 4, 5, 6}, {2, 4, 6, 8, 10, 12}, {...
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votes
0
answers
55
views
What should be the data format for a neural network with 2 inputs and a scalar output
I have a very simple network model: two named input ports, one summing layer, one linear layer and a scalar output. Despite many attempts, I cannot select a suitable data format that would be accepted ...
1
vote
0
answers
143
views
Getting a Asymptote 3D graph look more like Mathematica's
I am trying to get Mathics3 to produce Asymptote output that more closely matches what Mathematica produces.
Here is an example of Mathematica output for Plot3D[Sin[x y], {x, 0, 3}, {y, 0, 3}]:
and ...
- 7,168
-1
votes
1
answer
117
views
Solve complicated equation in Mathematica
I have a complicated equation and I wanna solve it with Mathematica. But, Because of the equation form I can't find analytical solution. So I try to solve it numerically. I try some method but can't ...
- 11
0
votes
0
answers
59
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Cannot Clear K[r] with Clear["Global`*"]
Why doesn't the following simple code reset K[r]?
In[1]:=$Context
K[r]=4r;
Clear["Global`*"];
K[r]
Out[1]=Global`
Out[4]=4r
If I use, say, A[r] or B[r] instead of K[r], they get cleared. ...
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