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Questions on writing non-trivial programs in Mathematica. Do not use this tag for questions on plotting/graphics or for questions on doing mathematics with Mathematica, where the focus is more on the math than the program.
6
votes
Accepted
Why the function cannot achieve the expected result?
Overall, I think your main confusion stems from mixing up different the programming paradigms and syntax in Mathematica. The way Functional and Rule & Patterns based programming works is different. … ; and
Programming Paradigms via Mathematica (A First Course). …
21
votes
Accepted
Importing Zip files
The documentation for the MIME type ZIP does not seem to say much about what you want to do, but luckily the first thing I tried worked!
First, I saved your zip file onto my desktop. Then, I extract …
45
votes
Accepted
Are there suitable versioning systems for Mathematica notebooks?
First, if you want to have a team working on Mathematica code, then you really should do it properly and use Wolfram Workbench. As pointed out by Leonid, notebooks are not the right tool for software …
20
votes
Accepted
Sum over n variables
You can write a few helper functions to help you. The following can probably be streamlined...
vars[s_String, n_Integer?Positive] := Table[Symbol[s <> ToString[i]], {i, 1, n}]
vars[sym_Symbol, num_] …
95
votes
Accepted
Is there an open source implementation of Mathematica-the-language?
On the implementation of a rule-based programming system and some of its applications by Mircea Marin and Temur Kutsia. …
17
votes
Struct equivalent in Mathematica?
So the naive way to set up a data structure like struct is, as the OP suggested, to simply used DownValues and/or SubValues. In the below, I use SubValues.
Copying the Wikipedia C language struct exa …
46
votes
4
answers
10k
views
How to change the default ColorData used in Mathematica's Plot?
This question leads on from the recent question What are the standard colors for plots in Mathematica?
There it was determined that the default color palette used by Plot is equivalent to ColorData[1] …