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17
votes
1answer
523 views

How can I set a keyboard shortcut to run a command?

I want to use this to add a keyboard shortcut to an undo function I wrote. The basic problem is the following: I have a command, let's say x=1, and I want to run ...
21
votes
2answers
968 views

What is a “Paclet”?

I often see references to "paclets", for example the PacletManager` context, the PacletInfo.m file in some packages and next to ...
10
votes
4answers
393 views

Which Mathematica files may be deleted to save space

After installation Mathematica 8 for Linux takes more than 3GB in the /usr/local/Wolfram/ directory. I suspect that not all of it is relevant if I want to do some occasional computations. Are there ...
4
votes
1answer
303 views

CUDALink is not initialized

I've upgraded to Mathematica 9.0 on Ubuntu 12.04 with the latest Nvidia driver (304.64). I load CUDA by using, as usual, Needs["CUDALink`"]. ...
7
votes
2answers
209 views

Clean up list of partial outputs for memory

Context I run long Mathematica sessions; sometimes I have Output up to Out[3000+]. Hence I would like to be able to clear out some previous outputs which do use lots of memory. Attempt I am aware ...
58
votes
2answers
592 views

Why are numeric division and subtraction not handled better in Mathematica?

There is something that has been troubling me for a while. At least in version 7, the performance of a / b and a - b is not ...
16
votes
0answers
598 views

How would I improve this Karaoke machine code?

I was looking at a large collection of Import/Export user suggestions the other day and it dawned on me that we finally have MIDI import in Mathematica 9, which is rather interesting since MIDI ...
23
votes
2answers
1k views

How can I use the Klingon alphabet symbols?

Mathematica apparently supports the Klingon alphabet: MemberQ[$CharacterEncodings, "Klingon"] True UnicodeFontMapping.tr excerpt: ...