Linked Questions
26 questions linked to/from Metaprogramming in Mathematica
602
votes
19
answers
156k
views
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 ...
139
votes
8
answers
9k
views
Can one identify the design patterns of Mathematica?
... or are they unnecessary in such a high-level language?
I've been thinking about programming style, coding standards and the like quite a bit lately, the result of my current work on a mixed .Net/...
- 34.2k
90
votes
6
answers
3k
views
How to avoid nested With[]?
With[
{v1 = #},
With[
{v2 = f[v1]},
g[v1, v2]
]
]
How to avoid nested With[] like the above? I'd like to use <...
- 8,666
69
votes
10
answers
3k
views
Injecting a sequence of expressions into a held expression
Consider the following toy example:
Hold[{1, 2, x}] /. x -> Sequence[3, 4]
It will give
Hold[{1, 2, Sequence[3, 4]}]
...
- 235k
75
votes
7
answers
6k
views
Functions vs. patterns
Every time I define a new function, I wonder which construct I should use: true functions obtained by using Function, or rule-based syntax. For example, these are ...
- 14.9k
36
votes
6
answers
7k
views
Finding all elements within a certain range in a sorted list
Suppose we have a sorted list of values. Let's use list = Sort@RandomReal[1, 1000000]; for this example.
I need a fast function ...
- 235k
121
votes
1
answer
8k
views
File-backed lists/variables for handling large data
Background
Currently I am working with some large data (most of it generated by Mathematica itself). I usually find it a hassle to do this. For example, I just exported a large amount of data to ...
- 235k
32
votes
5
answers
2k
views
Resource management in Mathematica
I am using a library that has functions like createSomeObject[] and deleteSomeObject[obj]. It is an interface to a C language ...
- 235k
20
votes
4
answers
2k
views
Implementing a function which generalizes the merging step in merge sort
One of the key steps in merge sort is the merging step. Given two sorted lists
sorted1={2,6,10,13,16,17,19};
sorted2={1,3,4,5,7,8,9,11,12,14,15,18,20};
of ...
- 2,197
24
votes
3
answers
2k
views
Select performance
I am fairly new to mathematica and working my way thru Paul Wellins book on Mathematica programming so experimenting with various language constructs. I was experimenting with ...
- 1,643
19
votes
3
answers
998
views
Generating assignments and transforming code inside held forms when generating code
I have been playing with slightly above trivial code manipulations in Mathematica. I thought Mathematica would be great for this kind of work because of rule replacement and expression manipulation, ...
- 423
35
votes
1
answer
2k
views
Customizing syntax highlighting for private cell styles
Is there any way to set up a cell style with a particular syntax highlighting?
For example, I'd like to have a CProgram cell to write in blue the C special words.
I have done it by setting ...
- 42.6k
14
votes
2
answers
2k
views
Mathematica Application in Real Life
As an 'user'-level in Mathematica, I mainly use built-in Mathematica function and benefit Mathematica as a mathematical tool-box for my specific scientific problem. My level is not yet programmer-...
16
votes
3
answers
1k
views
How to check the validity of an option value
I have a user-defined function, func, which takes the following form:
func[arg1, arg2, options]
Here is the actual code
...
- 625
28
votes
1
answer
1k
views
Convenient string manipulation
With Mathematica I always feel that strings are "second class citizens." Compared to a language such as PERL one must juggle a lot of code to accomplish the same task.
The available functionality is ...
- 272k
11
votes
2
answers
1k
views
Developing domain specific languages and computational knowledge engines using Mathematica
In one of Leonid Shifrin's excellent summaries, he mentioned that MMA capabilities include developing Domain Specific Languages (DSL).
I'd like to develop a Health care IT application that can
...
- 15.1k
9
votes
5
answers
489
views
Truncate TreeForm to show only the top
For some expressions, TreeForm may grow very long. I'm only interested in the top levels of the expression. How can I get the tree form of only the first levels an ...
- 7,757
14
votes
2
answers
1k
views
How to REALLY Hold arguments and capture FullForm?
I'm trying to write an expression deconstructor or FullForm-capturer; might even call it a parser, maybe, but that might be too glorious a word.
I got some great ...
- 8,661
19
votes
1
answer
936
views
List manipulation to build a functional expression
Since Mathematica deals with Head[a, b] as an expression in this way
The first Part of Head[a, b] is ...
- 660
12
votes
2
answers
1k
views
Workbench Profile[] question
I previously posted this question on Mathgroup but received no response
I am using Workbench to profile my code.
Suppose I have 2 modules, let's call them A, B (they are too long to replicate here). ...
- 333
8
votes
1
answer
505
views
Alternative to overloading Set
In the ideas shared in my answer to this post Struct equivalent in Mathematica? at the end I propose a solution that changes the way Set works in a particular case that can be expressed in plain words
...
- 11k
7
votes
4
answers
2k
views
Delayed evaluation of assignment
I have a set of PDE's that depend on parameters. They depend on many parameters, but for simplicity we can here assume that they depend only on one, say a.
I want ...
- 7,046
18
votes
1
answer
437
views
Macro functions in GeneralUtilities?
Questions have been asked about the Macros package before (e.g., (83815)), but I'm interested if anyone has some examples of using the macro related functions in GeneralUtilities:
...
- 31.5k
3
votes
1
answer
266
views
2
votes
2
answers
205
views
Setting local variables with another function
I'm working on a package with a lot of functions using Module, which all begin by unpacking the arguments into local variables. I'd like to store this unpacking code in a separate function called ...
- 20.2k
3
votes
1
answer
149
views
How to implement Outer with loops
I would like to implement a simplified version of Outer (Outer[f, vec1, vec2,..]) through a looping construct.
Here are is one ...
- 31