65
votes
0answers
3k 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 ...
55
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 ...
40
votes
0answers
507 views

Guidelines for planning custom GUI in Mathematica

This post is here to save your time during GUI development in Mathematica. And one way to do this is to know where limits are and to be aware of features that are awaiting. Intro Usually I don't ...
34
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 ...
32
votes
0answers
349 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 ...
31
votes
0answers
778 views

Input Aliases in Mathematica 10

Bug introduced in 10.0.0 and persisting through 10.4 or later In Mathematica 9, typing in an input alias such as intt would result in the keyboard cursor ...
29
votes
0answers
652 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 ...
28
votes
0answers
455 views

What is the difference between a .wl package and a .m package?

In Mathematica 10.x, one now has both .wl Wolfram Language Packages and .m Wolfram Mathematica Packages. What's the ...
25
votes
0answers
564 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 ...
25
votes
0answers
580 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 ...
24
votes
0answers
2k 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 ...
22
votes
0answers
358 views

Why is ListPlot so slow here?

While examining How can I monitor the progress of a Plot? I was surprised to discover that in some cases ListPlot in version 10.0 and 10.1 is orders of magnitude ...
22
votes
0answers
318 views

Is FullGraphics an abandoned function? Is there an alternative?

FullGraphics hasn't worked entirely for a long time and the situation appears to be getting worse instead of better. In Mathematica 10.0 and 10.1 a simple usage ...
22
votes
0answers
419 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 ...
22
votes
0answers
938 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 ...
21
votes
0answers
194 views

Regression /Bug in DelaunayMesh from 10.3.1 to 10.4

Bug introduced in V10.4 and persists through 10.4.1 In answering this question, I realized the OP and I were obtaining different results from the alphaShapes2D ...
21
votes
0answers
253 views

What is ColorEqualSigns and how does one use it?

I'm setting up the SyntaxInformation for a package I'm writing and I'm struggling to understand what the "ColorEqualSigns" ...
21
votes
0answers
353 views

Can code optimize code?

Are there functions, programs or packages that deal with optimizing mathematica code i.e. re-writing ineffecive or convoluted code. -This question has haunted me since I joined SE. The background for ...
21
votes
0answers
336 views

Graphics`Mesh`FindIntersections[ ] fails to detect intersections

Graphics`Mesh`FindIntersections[ ] is an undocumented function for, well, detecting intersections very efficiently. Take a look: ...
21
votes
0answers
601 views

How to improve these WASD + mouse look 3D controls?

Insipred by this question and the corresponding answer I've written a code for full-screen exploration of 3D scenes using standard WASD and mouse look controls. Here it is. ...
20
votes
0answers
232 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 ...
20
votes
0answers
884 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 ...
20
votes
0answers
899 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 ...
19
votes
0answers
259 views

Compile not correctly initializing a variable defined inside Module

Bug introduced in 8.0 and persisting through 10.3.1 or later In the following example, inside the minimumX's Module, ...
19
votes
0answers
612 views

How can I trace a functional expression's evaluation visually?

Ok, so the goal is to visualize the execution of this expression foo /@ {3 + 1, bar /@ {1 + 2, {4 + 7}}} in the following fashion using nested rectangles with ...
18
votes
0answers
343 views

How does Dataset compare to DataFrame in pandas?

Pandas is a Python package providing fast, flexible, and expressive data structures designed to make working with “relational” or “labeled” data. Just like ...
18
votes
0answers
396 views

More Ticks::ticks errors in AbsoluteOptions in v10

Bug introduced in 7.0 or earlier and persisting through 10.4 or later While the specific bug affecting Plot described in AbsoluteOptions prints error messages in ...
18
votes
0answers
369 views

Getting EPS imports to respect the original fill rule

One major problem in my attempt to answer to the CountryData flags question is that the way Mathematica handles filled curves differs from the way SVG and EPS style editors do. The latter two have the ...
17
votes
0answers
178 views

Front ends gone wild with named slots

Bug introduced in version 10, persisting through 10.3 Assume the following simple expression {#"Test"}& Now go in front of the ...
17
votes
0answers
232 views

Is MathieuC for moderately large imaginary arguments broken?

I'm trying to plot MathieuC[-3,0.3,I x] for $x\in[0,10]$, and here's what I get even with arbitrary precision arithmetic (here I use ...
17
votes
0answers
298 views

RegionPlot returning a number

Bug introduced in 10.0 and persisting through 10.4 or later I had updated my mathematica to version 10 few days ago. And I had been shocked by the following fact: ...
16
votes
0answers
327 views

How to automatically pack irregular polyhedra

We get the tetrakaidecahedron like this: ...
16
votes
0answers
168 views

Bug in RegionMember?

Bug persisting through 10.4.1 RegionMember (new in V10) appears to have a bug. For some polygons it finds points that are clearly outside to be "members" of the ...
16
votes
0answers
292 views

What's the point of ContainsAll, ContainsAny and friends?

Mathematica 10.2 contains a few new functions that test set containment: ContainsAll, ContainsAny and a few others. The ...
16
votes
0answers
248 views

Bug(?) in version 10: Tooltip and ListPointPlot3D

Bug introduced in 10.0.0, persists through 10.1 The coordinates of a point in a three dimensional graph can be shown in a tooltip: ...
16
votes
0answers
214 views

Exp is slower for some number ranges

I get a hit on performance with the Exp function depending on the range of my inputs. for example, with: ...
16
votes
0answers
283 views

What are these new LibraryLink functions and datatypes for?

Looking at the LibraryLink examples, there are several new functions and objects, as well as example programs, that appeared in version 9. Are these documented? If yes, where? If would be nice to ...
16
votes
0answers
999 views

How to protect existing MathLink connection from disconnecting

I am developing an application that consists of a Mathematica package and an external Java program. The purpose of the application is to read streamed data from a port and update a variable in the ...
15
votes
0answers
164 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 ...
15
votes
0answers
342 views

Colored marks appearing in notebook input text?

Bug introduced in 10, persisting through 10.2 What is the causing these colored marks to appear in my Mathematica notebook? I'm particularly annoyed with the black ovals that occasionally obscure ...
15
votes
0answers
188 views

Calling Sage functions from Mathematica

I recently found a very useful open-source math software called Sage, which provides many useful functions lacking in Mathematica. Since I'm more used to the Mathematica language instead of the ...
15
votes
0answers
966 views

Using TetGen in Mathematica to get 3D Voronoi diagram

In this post, the use of TetGen for 3D Voronoi tesselation has been briefly discussed. However there is still no info about the use of TetGen to generate a 3D Voronoi diagram. The TetGen documentation ...
14
votes
0answers
231 views

Find the Panda and the Cat - Dudolf puzzle

I recently find this puzzle where you have to find the panda from a group of snowmen. Having a horrible eyesight I have to take help of mathematica to find it. I start with assumption that all ...
14
votes
0answers
135 views

Why does the Ver. 10.0 FrontEnd lose matching of parentheses when we insert quotations?

I am running Mathematica 10.0.1 on a four-year old iMac running OS 10.6.8. The following irritating behavior occurs regularly: I have a list with parentheses, and later on I need to add something to ...
14
votes
0answers
185 views

Initial values in Manipulate are hijacked by existing global variable values

Is the following behaviour a bug? It's the same in all versions between 9.0-10.2.0. Let's try this simple Manipulate with the initial value of ...
14
votes
0answers
215 views

CDF Player - MMA9 - MMA10 oddities

I'm (slowly) building a WordPress site with some didactic simulation made with Mathematica. Users can run the simulations (on-line or off-line) with the free Wolfram CDF Player. One of the last ...
14
votes
0answers
342 views

Minesweeper beta:How to Dynamic a lot of graphics with high-speed

Recently I want to write a game,Minesweeper.Here is my completed code. ...
14
votes
0answers
436 views

Learning Resources for Data Science in the Wolfram Language

I'm delivering an upcoming course on Data Science with the programming/analysis done predominantly in the Wolfram Language. I created the following table to leverage students' familiarity with Lists ...
14
votes
0answers
291 views

Why does Mathematica choose branches as it does in this situation?

Consider these integrals: ...
13
votes
0answers
129 views

Current (e.g., ca. 2016 / MMa 10 / WP 4+) best practices for embedding interactive content in WordPress?

My strategy, in the past, has been to embed interactive CDF files into my WordPress blog for student's to use (Much like the Wolfram Demonstration Project). As many know 1) the 'Plug in' ...

15 30 50 per page