Linked Questions
14 questions linked to/from Function that counts the number of arguments of other functions
1
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0
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Find the arity of any function [duplicate]
First an example: f[x_,y_]:=x+y would have arity 2 because it takes 2 inputs while the function g[x]:=0 has arity 1, even though ...
- 71
596
votes
19
answers
154k
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Where can I find examples of good Mathematica programming practice?
I consider myself a pretty good Mathematica programmer, but I'm always looking out for ways to either improve my way of doing things in Mathematica, or to see if there's something nifty that I haven't ...
92
votes
4
answers
5k
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Automatically generating a dependency graph of an arbitrary Mathematica function?
Has anyone written a function to pull the function dependencies of a function? That is, it would be nice to have a function that returns a list of function dependencies as a set of rules, terminating ...
- 1,407
40
votes
1
answer
1k
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What can I use as the second argument to Return in my own functions?
Having found out about the second argument to Return I played a bit with it, and the following tests all resulted in ...
- 19.1k
8
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4
answers
1k
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How can I get the number of slots in Function?
Suppose that I define
f = Function[#1 + #2];
And I want to define a new function, argsNum, so that it returns a number of ...
- 369
11
votes
5
answers
580
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How to get the parameter number of inbuilt function
I want to make a custom function parameterNumber,which can return the parameter number of inbuilt function,as the Plot's ...
- 26.1k
11
votes
3
answers
527
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How to write a function-defining function which stores the function arguments in a stack?
I have a function-defining function
SetAttributes[DefFn, HoldAll];
DefFn[f_[args___], body_] :=
f[args] := body;
I am trying to modify this function to record ...
- 2,125
4
votes
5
answers
306
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Using Through with SlotSequence
I have an expression consisting of a few pure functions added together like so:
f+g+h
I want to add the bodies of these functions together and make that a pure ...
- 1,089
9
votes
1
answer
253
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Automatization of SyntaxInformation and argx?
Does anybody have a good way to automate the setting of SyntaxInformation for any custom function? I have a ton of functions for which I want to set SyntaxInformation, and doing it by hand seems a ...
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2
votes
1
answer
180
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How many arguments does a function require, and how to use that in `Manipulate`
The goal is to vary the order parameters in wavelet transforms in the Manipulate environment. The various transformations have arguments of different rank. For ...
- 1,010
0
votes
1
answer
257
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Create jacobian Function from a vector Function
This is related to this question and maybe this question. I wanted a function that takes an n-parameter vector function and outputs a Jacobian matrix function, also n-parameter. I think this works:
<...
- 341
5
votes
1
answer
272
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Meta information about function parameters
I'm working on a project that allows for executing arbitrary, user-defined Mathematica scripts. It's an internal tool running on a trusted, local network. It's basically a web interface to Mathematica....
- 153
2
votes
1
answer
268
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Examine function parameters programmatically
I write a lot of scripts in Mathematica and I'd like to eliminate the boilerplate that parses command-line arguments and assigns them to variables of the correct type before doing the real work. I was ...
- 269
1
vote
0
answers
144
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Pattern for a function of say 2 variables [closed]
How can I specify a pattern for an expression f for which say f[x,y] returns a value, ie is defined as a function taking two ...
- 701