Unanswered Questions

60
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 ...
52
votes
0answers
1k 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 ...
44
votes
2answers
939 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, ...
31
votes
0answers
1k 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 ...
26
votes
0answers
671 views

Input Aliases in Mathematica 10

Bug introduced in 10.0.0 and persisting through 10.3 or later In Mathematica 9, typing in an input alias such as intt would result in the keyboard cursor ...
26
votes
0answers
614 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 ...
26
votes
1answer
363 views

$\sum _{k=1}^{\infty } \left\lfloor \frac{5}{5^k}\right\rfloor$ giving wrong answer?

Bug introduced in 7.0 or earlier and persisting through 10.3.1 or later When I try to evaluate the following: $$\sum _{k=1}^{\infty } \Bigg\lfloor \frac{5}{5^k}\Bigg\rfloor$$ using ...
22
votes
0answers
499 views

Performance problems in new Sequence functions

The new-in-10.1 Sequence* family of functions should provide newly optimized methods for handling sequence problems. Happily in some cases they do! For example ...
22
votes
0answers
514 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
236 views

How to speed up PDF export in Mathematica 10

Based on this question: - Version 7 print environment - I set up two 10 page test documents in version 7.0.1 and version 10.1. The version 7 document exported to PDF in 4.18 seconds whereas the ...
21
votes
0answers
400 views

A documented syntax of FileNames doesn't work?

Documentation discrepancy present through 10.3 According to the documentation for FileNames under Details: However when I attempt to use this syntax I get an ...
21
votes
0answers
237 views

Hyperlinks not preserved when saving in PDF format in MMA V10

I usually create my course contracts in Mathematica and then save them in PDF format. The notebooks include hyperlinks and these have transferred to PDF without problem over the last several versions ...
21
votes
0answers
1k views

Mathematica performance on Mac

I recently got a trial version of both Mathematica 9 and MATLAB 13a for Windows. I was stunned by the performance difference in the Windows and the Mac version. It was a simple test in matrix ...
21
votes
0answers
902 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
309 views

Graphics`Mesh`FindIntersections[ ] fails to detect intersections

Graphics`Mesh`FindIntersections[ ] is an undocumented function for, well, detecting intersections very efficiently. Take a look: ...

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