Trending questions
97,743 questions
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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 ...
- 5,434
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votes
0
answers
44
views
How do I switch off the spell checking in notebook text cells? [duplicate]
When I write my notebooks I usually use English in the text cells. However, in some cases, I need to write in Russian or German. Then the German or Russian text appears underlined. Please find below ...
- 40.8k
3
votes
1
answer
183
views
Mathematica ODE question
I am trying to solve an iterative matrix ODE of the form $f_k'(x)=T.f_k(x)+B(x)*S.f_{k-1}(x)$, where f is an $n$ dimension column, T and S are $n \times n$ matrices, and $B(x)$ is a function. The ...
- 169
6
votes
1
answer
234
views
Is it valid for DSolve to return Indeterminate as a solution to a differential equation?
In V 14.3
Quit[]
ode=2*y[x]*D[y[x],{x,2}]==1+D[y[x],x]^2;
DSolve[ode,y[x],x,IncludeSingularSolutions->True]
Gives
Is it valid for DSolve to return ...
- 156k
2
votes
1
answer
116
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Integration of function involving ArcCsc with assumptions returns wrong answer
When I ask Mathematica (version 14.1) to do the following symbolic integration:
...
- 1,073
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0
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54
views
1
vote
2
answers
51
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How can I include all terms within a sum? [duplicate]
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
...
- 11
8
votes
0
answers
167
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 ...
- 872
3
votes
1
answer
103
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 ...
- 687
1
vote
0
answers
69
views
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 ...
- 1,179
1
vote
1
answer
154
views
$LLL$ implementation complexity in wolfram mathematica
$LLL$ is implemented in Wolfram Mathematica as $\mathsf{LatticeReduce}$ command. If we want to reduce a rank $k\leq n$ lattice in $\mathbb Z^n$ where the generator matrix of the lattice has integral ...
- 157
5
votes
3
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436
views
How to define a matrix to be positive definite and symmetric?
I'm somewhat new to Mathematica and want to check symbolic solutions to small positive definite symmetric matrices (like 3x3 in size), which I think should in general yield a symbolic solution since ...
- 159
5
votes
3
answers
292
views
Is there an equivalent of Exponent for difference equations?
[Edited.]
For $ax^{2}+bx+c$, I can write
poly = a x^2 + b x + c;
Exponent[poly, x]
and get back 2.
I don't see a built-in ...
- 667
3
votes
3
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6
votes
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+400
Extract tick values from a BarChart
This question from nearly ten years ago asks how to overlay plots and other graphics-related objects onto a BarChart.
When that question was asked (November 2015), ...
- 10.6k