Questions tagged [function-construction]
For questions on writing functions (pure or using Set/SetDelayed) for any purpose, including the features that may be incorporated in those functions, such as options, patterns and conditions.
2,538 questions
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How to check if two edges have consistent orientation in all simple cycles of a graph?
How can I check whether two edges (tagged "c" and "d") have consistent orientation (either always the same ...
- 1,417
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2
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How to find x ranges where a function is one-to-one and its output is in a given range?
I have a list of functions like this:
...
- 1,417
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Is there any efficient way to find cycle matroid of a graph?
Is there any efficient way to find cycle matroid of a graph?
A cycle matroid is basically all sets of edges in a graph that does not form a cycle.
The code below works pretty well for small graphs, ...
- 1,417
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Recursive anonymous functions with |-> notation
We can define anonymous functions like this:
#^2+#+1 &
or like this
x |-> x^2+x+1
When we want to define a recursive ...
- 533
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How to determine if a user-defined function, passed as an option, has a specific number of arguments
Let's say that I have a function f which is passed a user-defined function g which is originally passed as an option to some ...
- 131
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How to extract the correct branch of a ConditionalExpression that a given range belongs to?
This function has two separate branches (not connected together):
func = ConditionalExpression[1/(1 - 2 x)^2, 0 < x < 1];
Given a range of ...
- 1,417
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How to generate all graphs that decompose into a given list of subgraphs at articulation points?
Given a list of directed edge-tagged graphs gList like this:
...
- 1,417
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4
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How to find all possible splits of a list into sublists sharing exactly one element?
Given a list, I want to find all possible ways to split it into sublists such that:
Each sublist has length greater than 1.
Any two consecutive sublists share exactly one common element.
All elements ...
- 1,417
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The cases of Piecewise function are not recognized when calculated in Table
Before describing the problem, a short background on how it pops up.
I am solving a PDE problem on the [0,1]x[0,1] domain. To this end, I want to find the decomposition of some derivatives of the ...
- 95
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How can I reconstruct a graph from a list of fundamental cycles?
Assume that I have a list of simple cycle EdgeTaggedGraph objects called fundamentalCycles. I would like to construct a graph <...
- 1,417
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How to apply a list of binary operators to a list of arguments respecting standard operator precedence?
I have a list of binary functions such as {Plus, Times, Subtract} and a list of symbols like {a, b, c, d}. I want to construct ...
- 5,782
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Riffle a list of binary functions into list of arguments to produce a result
Suppose I have a list of binary functions, e.g.
funcs = {Plus, Times, Power}
as well as a list of arguments, e.g.
...
- 1,720
4
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2
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Partitions of an integer into sums of nonnegative integer powers of its decimal digits
Problem statement: I am trying to write a function that calculates the number of distinct ways an integer can be expressed as a sum of nonnegative integer powers of its decimal digits and return this ...
- 347
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How to define the derivative of variables inside an expression so chain rule can be correctly applied to the full expression
I don't use Mathematica as much and only use it for some specific tasks from time to time (mostly simplifying expressions and calculating integrals and derivatives).
Lets say I have an large ...
