Unanswered Questions

53
votes
0answers
2k views

Numbered equations/formulas

How do you number equations in Mathematica notebooks so that they are exported correctly into latex? In case you don't know how to put numbered equations here is quick review. Open a new notebook ...
47
votes
0answers
893 views

Is this the most effective and efficient programming style for prototyping (a ray tracer) in Mathematica?

I am trying out Mathematica as a prototyping tool. As an initial exercise I have put together a brute force ray tracer, with a view to using Mathematica's built in probability distribution functions ...
42
votes
2answers
857 views

How is pattern specificity decided?

Mathematica has a notion of pattern specificity, which is a partial ordering on patterns. The rules (e.g. DownValues, ...
28
votes
1answer
962 views

Fast Spherical Harmonics radiative transfer

This is a rather specific question and I apologize for spamming you with some lengthy code. But it could be interesting for some reader and maybe you can help out, so please bear with me. I am using ...
27
votes
0answers
549 views

Version 10 cannot print properly?

Bug introduced in 10.0 and persisting through 10.2 or later I have two problems with printing in version 10. First, I can't print correctly with a setting of printing scale For example, I have ...
27
votes
0answers
425 views

What Mathematica features and idioms have $n^2$ complexity or worse

Here are a few: AppendTo[data, elem], Sort[data, test], in some cases use of ___ (as ...
25
votes
0answers
381 views

Summer Solstice Spurious Correlations Challenge

I came across this hilarious web site that has charts of bizarre "correlations" between disparate categories. Results like this: In the spirit of my summer solstice shedding spuriously earned rep. ...
25
votes
0answers
550 views

Changing FrontEnd automatic scrolling in version 8

In Mathematica versions < 8, the FrontEnd has a very intelligent behavior: On evaluation, it by default automatically scrolls down the Notebook window to the last printed Output cell but also ...
22
votes
0answers
433 views

How to perform document classification (i.e. extracting topics from text)?

I need to build a multi-label text classifier. There are a bunch of techniques for doing this, and it's called automatic document classification. I'm trying to use the EM technique (expectation ...
22
votes
0answers
443 views

What is the status of `::usage` and Templates in Mathematica v10.1?

In Mathematica 9, a number of issues concerning the ::usage and templates were raised. In 9.0, there was a bug first reported here and better diagnosed here, where ...
21
votes
0answers
805 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 ...
20
votes
0answers
457 views

Input Aliases in Mathematica 10

Bug introduced in 10.0.0 and persisting through 10.2.0 or later In Mathematica 9, typing in an input alias such as intt would result in the keyboard cursor ...
19
votes
0answers
181 views

New AssociationThread forms in 10.2?

Is this another case of "documented" but "not implemented" ? or at least it is not explained clearly as I cannot make it work: Two new forms appears in the new 10.2 doc. of ...
19
votes
0answers
325 views

A documented syntax of FileNames doesn't work?

Documentation discrepancy present through 10.2 According to the documentation for FileNames under Details: However when I attempt to use this syntax I get an ...
18
votes
0answers
151 views

Listable compiled function crashes the kernel with “no more memory available”

Bug introduced in 9.0.0 and persisting through 10.2.0 I am trying to speed up a function that involves continued fractions. Since ContinuedFraction cannot be ...

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