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1
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2
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7
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How can I include all terms within a sum?
I would like to include terms that factorize a sum within the sum.
For instance, from
k Sum[Subscript[x, i], {i, 1, L}]
getting
...
0
votes
0
answers
12
views
How can I append data to a file with tab-separated values?
I'm producing a lot of data which I want to save to a file in tab-separated format:
$\begin{matrix}x_1&&f(x_1)\\x_2&&f(x_2)\\x_3&&f(x_3)\\&\ldots\end{matrix}$
I'd like ...
0
votes
0
answers
72
views
NMinimize apparently enters an infinite loop
I've stumbled across what seems to be a weird interaction of the NMinimize function.
I'm minimising the function -Log[Sin[2x]] + a Cos[x]^2 for 0ドル < x < \pi/2$...
1
vote
0
answers
53
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How to simply change filled-in marker with empty circles in the given code?
I use this code
p1 = Graphics[{PointSize[0.05], Red, Point[{{4, 0}, {7, 0}}]}];
p2 = Plot[Sin[x], {x, 0, 10}, PlotRange -> {-2, 2}];
Show[{p1, p2}]
which gives ...
2
votes
1
answer
161
views
Converting a list of a function in Mathematica
Assume that I define:
...
5
votes
1
answer
161
views
Feature Extractor for Molecules
Running FeatureSpacePlot[mols] gives me an interesting plot and I would like to understand the method.
Does anyone know or can point me to a reference page on how ...
3
votes
1
answer
142
views
Is RarerProbability useful with asymmetrical distributions?
The documentation clearly states that for the symmetrical normal distribution RarerProbability[distribution,x] gives the two-sided p-value for x.
Using direct ...
2
votes
1
answer
104
views
Integration of function involving ArcCsc with assumptions returns wrong answer
When I ask Mathematica (version 14.1) to do the following symbolic integration:
...
1
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0
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50
views
How to make a Framed PlotLabel span the exact width of the plot Frame?
I am trying to add a title with a background color to my plot. Currently, using Framed inside PlotLabel only creates a box around the text itself.
I want the background box of the title to:
Span the ...
1
vote
0
answers
54
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ToRules that preserves conditions that cannot be written as Rules
I would love to have a ToRules that can act on say Reduce output that preserves conditions that cannot be written as rules. Something that creates something like
...
0
votes
0
answers
56
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The heat conduction equation of solar cells can't be solved [duplicate]
The heat conduction equation of solar cells can't be solved. NDSolveValue::ndnum: Encountered non-numerical value for a derivative at x == 0. ...
3
votes
1
answer
92
views
How to preserve tooltips for SVG Maps created by Mathematica?
I want to produce an SVG map by Mathematica that preserves tooltips that are in Mathematica so that they are also in the SVG. The problem is that the tooltips do not export.
Here is an example:
That ...
2
votes
2
answers
120
views
Define meaning for symbol such as ⇓ despite 'Incomplete expression; more input is needed'
Example
The notation $a\Downarrow_bc$ can mean something like "the program $a$ results in $c$ when executed according to the semantics of $b$".
In Mathematica, I input this as ...
7
votes
0
answers
139
views
CollinearPoints returning True for noncollinear points
I think there might be an issue with CollinearPoints at least in the 14.2 Windows version I'm using. The issue arises where there are duplicate points and mixed ...
3
votes
2
answers
119
views
Matching an expression in Hold
Trying to replace some of the expressions wrapped by Hold as below to get $\frac{k d\theta }{dt},ドル ReplaceAll does not replacing ...