Questions tagged [functions]
Questions about the use of built-in Mathematica functions, including pure functions.
3,884 questions
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How can I generate unique partitions of a list into sublists of specific sizes (no overlap)?
I need to partition a list of elements into sublists of specific sizes, ensuring:
The order of elements within each sublist doesn't matter.
There is no overlap between sublists (each element appears ...
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1
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6
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646
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How to select a random element from a list without repetition until all elements are used?
I have a list, for example:
list = Range[10];
I would like to randomly select one element from this list each time I run the code. However, once an element has ...
- 705
4
votes
1
answer
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How to split a graph at two cut vertices?
How can I split a graph into two subgraphs, as shown in the image below, given a pair of cut vertices?
(Let's assume the user ensures that a valid pair of cut vertices is provided.)
The possible cut ...
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5
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1
answer
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Is there an algorithm/functions to detect 2-isomorphic graphs?
Are there any algorithms or functions to find 2-isomorphic graphs (second isomorphism), either built into Mathematica, IGraph, or available in other programming languages?
I've been searching, but ...
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0
votes
1
answer
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Filling slots by referring to multiple lists [duplicate]
I have written a little function to find the odd integers between 3 and 1000 that are divisible by a given prime p but are not divisible by all the odd primes less than p.
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4
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1
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Using Total to evaluate row sums of a matrix inside Compile
I have some code that evaluates a a large function of the strengths and degrees of a bipartite adjacency matrix. It takes a while to evaluate it, so I tried compiling it:
...
- 2,265
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1
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Why does Mathematica plot a function with a discontinuity as if one does not exist? [duplicate]
I wrote the code below to plot the function shown over two regions. Mathematica plots the function across the two regions (r from 0 to 2) without recognizing a discontinuity exists at r = 1 (a divide ...
- 2,017
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How to plot a graph with intersections, asymptotes and turning points?
Is there a mathematica function that for some function like (x^2-1)/x it labels the intersections, asymptotes and turning points?
I'm new to mathematica, thanks ...
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0
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NDSolve::ndinnt Updating one IVP with Results of another at each iteration [duplicate]
I'm solving the problem involving two IVPs.
I start by creating a function of the inlet conditions of the first IVP. This function gives the value of the function at some point when the initial value ...
1
vote
1
answer
104
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Attribute based pre-processing of arguments
I work with hashes that can be related to various data structures.
I find it convenient to have my functions work either when a hash argument is provided or when the required data structure is ...
- 4,881
3
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1
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141
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Understanding the Distribute Function
I am trying to understand the built-in Distribute function. Should be simple enough, but for some reason, I can't wrap my head around it...
If I execute the ...
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3
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1
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Find the position of a planet at a specific time
I have been trying to find the position of the planets at a specific time or date without success. The command which should work according to my reading of the documentation is
...
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2
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ParametricRegion doesn't recognise BezierFunction as 3D
Problem
I'm trying to make a MeshRegion from a bezier surface defined from an array of control points. Consider
...
- 4,028
0
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0
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93
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Why does Mathematica not recognize an exact polynomial after SetDelayed command?
I am using the numerical analytic continuation method to find quasinormal modes of the black hole 2 with $s=0, l=1$ in arXiv:2209.00679, please see Table 1 of arXiv:2209.00679. However, my code is ...
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2
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How to automatically generate implicit regions from conditional expressions?
I need help writing a function that can automatically convert the following conditional expressions into implicit regions in Mathematica.
Given a list of conditional expressions:
...
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