Linked Questions

111
votes
3answers
5k views

Programmatic formatting for Mathematica code - possible?

It seems to be both an interesting programming challenge and a very useful practical application to have a Mathematica program which would allow one to pretty-print Mathematica code, so that it is ...
38
votes
9answers
5k views

Removing elements from a list which appear in another list

There are two lists {a, b, c, a, d, a, e} and {a, c, a}. I need to remove those elements from the first list which appears in a second list, to get {b, d, a, e}
73
votes
4answers
5k views

Using a PatternTest versus a Condition for pattern matching

My last question to the site resulted in several answers that involve using pattern matching in Mathematica, a feature I wasn't very familiar with at the time. I am currently reading Mathematica ...
83
votes
4answers
7k views

Using the Mathematica front-end efficiently for editing notebooks

Background: I have used Vim for 15+ years. There is a certain "one"-ness with the editor one achieves. Emacs users also experience this. Notepad users do not. My current interaction with the ...
35
votes
7answers
8k views

Embed Code Into Image

I often export images(plots, matrix, arrays, etc..) from mathematica which I end up putting in word documents or uploading to the web. The problem is that I often lose the original code and I am left ...
39
votes
5answers
5k views

Distribution of random points in 3D space to simulate the Crab Nebula

I'm generating some 3D models of planetary nebulae and supernova remnants for Celestia, a free OpenGL astronomy software. Currently, I know how to do it with random points inside a spherical shell. ...
53
votes
5answers
1k views

Placement of Condition /; expressions

It is my practice to place Condition expressions on the left side of := and :> in almost ...
45
votes
5answers
19k views

Find eigen energies of time-independent Schrödinger equation

I'm trying to get the eigenvalues of a one dimensional time-independent Schrödinger equation, $-\frac{h^2}{2m_0}\frac{d^2\psi}{dx^2}+U(x)~\psi=Ei~\psi$ where U(x) is some potential and Ei is the ...
55
votes
5answers
6k views

Are there any cases when For[] loops are reasonable?

To my mind the only reason for the existence of For[] loops in Mathematica is to allow new users with some experience in procedural programming languages to write ...
73
votes
3answers
3k views

Syntax highlighting for your own functions

Mathematica has a useful feature that for functions and special constructs getting passed local variables (for example Minimize or ...
54
votes
4answers
4k views

Is there an easy way to use Matteo Niccoli's perceptual color maps for 2D plots in Mathematica?

I have been using the ubiquitous Jet color palette for 2D plots for some time now, and don't really care for it. Then I came across the series of blog posts, The rainbow is dead...long live the ...
81
votes
3answers
7k views

Recommended settings for git when using with Mathematica projects?

Background I'm relatively new to git — currently overseeing an offshore .NET-based development project on GitHub within a private business account, but little experience beyond that. I'd like to set ...
55
votes
4answers
3k views

Automatic e-mail/text message when a calculation has finished?

Sometimes Mathematica takes quite a while to finish calculations and it would be convenient to be able to move away from the computer while it is working. I was wondering if there is any "clever" hack ...
84
votes
2answers
6k views

What are the best practices / most common / idiomatic ways to report errors in Mathematica?

In particular, what are the best ways to report errors about incorrect arguments to a function? Checking for the correct arguments is relatively easy using patterns, but how to report an informative ...
44
votes
5answers
3k views

How to create symbols from strings and set values for them?

I am trying to convert a list of string names into symbols, which will then be used to store data. I have 24 files (where the name of each file is a member of the list mentioned above) that I need to ...

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