Unanswered Questions

11,932 questions with no upvoted or accepted answers
50 votes
0 answers
1k views

Hyperlinks not preserved when saving in PDF format in MMA V10

Bug introduced in 10.0 or earlier and fixed in 11.0.0 I usually create my course contracts in Mathematica and then save them in PDF format. The notebooks include hyperlinks and these have ...
46 votes
0 answers
2k 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 ...
41 votes
0 answers
760 views

Front end goes wild with named slots

Bug introduced in 10 and fixed in 12.1 Assume the following simple expression {#"Test"}& Now go in front of the #...
39 votes
0 answers
991 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 ...
36 votes
0 answers
977 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 ...
33 votes
0 answers
715 views

How to design CloudObjects with reasonable CloudCredit costs

Note: I originally thought to post this as a non-answer/extended comment to this question; however I feared that I would end up hijacking the original question. It is likely a duplicate with the ...
33 votes
1 answer
688 views

Benchmarking: unexplained switching between high and low performance

tl;dr I am trying to accurately benchmark some vectorized operations, and compare them between systems. But benchmarking is hard to do well, and I am getting inconsistent results: performance is ...
27 votes
0 answers
1k views

Nonlinear least squares on a GPU with Mathematica 9

Update: A Mathematica wrapper for (https://github.com/zitmen/cuLM) should allow for us to directly implement the Levenberg-Marquardt algorithm in CUDA for nonlinear least squares fitting. In a ...
26 votes
0 answers
1k views

Kinect on Mathematica

I saw on the internet a lot of nice experiments with Microsoft Kinect. I just bought one and would like to know if someone here has been able to use it with Mathematica. The main idea is to been able ...
25 votes
0 answers
493 views

Compile not correctly initializing a variable defined inside Module

Bug introduced in 8.0, fixed in 10.4, intentionally reintroduced in 11.0 and persisting through 13.0.0 or later In the following example, inside the minimumX's <...
24 votes
0 answers
1k views

ListContourPlot and ListContourPlot3D use better interpolation for arrays of values than for lists of tuples (i.e. {{x,y,z,f[x,y,z]}..}

From reading the documentation, it seems that ListContourPlot3D should work equally well on an array versus a list of tuples, ?ListContourPlot3D ...
24 votes
0 answers
541 views

LibraryLink: What can we do with MInputStream and MOutputStream?

Version 9 introduced the WolframStreamsLibrary.h header for LibraryLink. It contains MInputStream and ...
23 votes
0 answers
985 views

Mathematica vs. state-of-the-art SAT solvers

I found some fascinating paper by Marijn Heule and Oliver Kullmann on advances in SAT solvers and automated reasoning. In particular, the authors where able to show (a year earlier) a breakthrough ...
23 votes
0 answers
1k 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 ...
22 votes
0 answers
320 views

What has changed in pattern matching functions with the Orderless attribute?

Bug introduced in 10.1 and fixed in 11.0(.1) In making an attempt to answer this question, we ran into a version-dependent pattern-matching issue. An extended discussion in the comments transpired, ...

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