# All Questions

7,720 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
549 views

### Is there any way to export vector graphics with shading?

This has irked me for a while as I really feel its a significant shortfall in Mathematica's abilities but maybe I am missing something. I would like to export simple graphics with shading in a ...
1k views

Bug introduced in 9.0 or earlier and fixed in 11.0.0 Why does this work: Graphics[{Circle[{0, 0}, -Pi/4]}] But this doesn't? ...
227 views

### Is Mathematica 10 color managed?

With ColorProfileData Mathematica 10 can handle device-dependent color spaces. However images with embedded color profiles, e.g. ...
335 views

### Strategies to find curves on messy data using FindCurvePath

I have a set of data points that correspond to roots of a transcendental equation with respect to a parameter (the abscissa) which, by the properties of the system, define continuous curves (might be ...
223 views

### Is there a convenient/automatic way of uploading a notebook into SE?

This post discusses how to streamline the other way - extracting code from a fragmented and longish SE answer but I imagine a two-way workflow like: Fashion an answer/question in an SE-templated ...
209 views

### Dynamic is significantly faster and more responsive with LinkSnooper

I noticed an absolutely bizarre behavior of Dynamic. A simple dynamic module with SynchronousUpdating -> False is ...
315 views

### New issue or new setting(s) of Goodness-of-Fit Tests in 11.3@student edition

Bug introduced in 11.3 or earlier and persisting through 11.3.0 or later Just before upgrading to 11.3.0 on last Friday, i was having p-value results from 11.2.0. Not worrying about upgrade may ...
332 views

### Where are my Cloud Credits going?

In less than a month I've used 5k cloud credits (half of my quota) and all I did was deploying a bunch of static notebooks with ...
177 views

### WordOrientation does not work in v11?

Bug introduced in 11.0.1 and fixed in 11.1 It seems that WordOrientation does not work in v11. The sample code ...
459 views

### Mathematica HPC on AWS vs. Azure

I am looking for advice on deploying Mathematica for HPC in an on-demand cloud environment. I occasionally have Mathematica projects that require parallel computing and large amounts of RAM. These ...
428 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 ...
743 views

### Implementation of Partial Least Squares (PLS)?

I'm looking for a PLS implementation for Wolfram Mathematica. I just can't seem to find any implementation for it - do you know one? In general, I'm a bit confused that there exist only so few third-...
260 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 ...
652 views

### PenaltyFunction Option in NMinimize

I am curious if anybody has some experience in using the built-in Option "PenaltyFunction" in any of the numerical optimization functions like NMinimize. According to the documentation the user ...
322 views

### Unexpected design of protection against dynamic content

Introduction/summary I was surprised by the (from my point of view limited) extent to which the user is defended against "potentially unsafe dynamic content" by default. Two things were unexpected ...
466 views

### Is it possible to regain Mathematica 5.2's palette input focus behaviour with version 8.0?

Between Mathematica 5.2 and later versions, there has been a change in determining which notebook gets the palette input focus, which leads to quite unfortunate behaviour if you use focus-follows-...
165 views

### Implementing Contextual Bandits in version 12

The multi-armed bandit problem (MAB) is a classic in Reinforcement learning. Now that mathematica version 12 finally has support for Reinforcement learning: Here's a nice "mnist example" for training ...
265 views

### Wolfram new products

Can someone elaborate on the products relating to Wolfram Cloud? They all seem the same. When I login to Wolfram Cloud there's: Wolfram One Wolfram Development Platform Wolfram Programming Lab ...
195 views

### Bug: Library functions from older versions of Mathematica may crash in Mathematica 11.1 and conversely

The following is a confirmed bug [CASE:3846875] that turned up in the prerelease 11.1.0 and is not solved in the official release. This is a small example. Execute the following commands in ...
205 views

### Bug? Numerical calculation error with FullSimplify and arbitrary precision

Bug introduced after 5.2, fixed in 8.0, reintroduced in 9.0 and persisting through 11.2 Is this a bug? If I do FullSimplify[n E^(010 n)] then it returns <...
107 views

### Why does MapAt unpack individual elements?

(In case this is version specific I am using Mathematica 10.1 under Windows.) While responding to Partition array without unpacking I noticed something about MapAt ...
236 views

### Tooltip/EventHandler misaligned with scaled graphics primitives they wrap

Bug introduced in 8.0 or earlier and persists through 11.3 It affects all event based wrappers for affected primitives. E.g. EventHandler. Which makes it a big ...
129 views

### Why does GreaterEqual take a long time to evaluate with arrays?

Take the following example: big = RandomReal[1, 10000000]; Head[big >= 0.66] // AbsoluteTiming (* {0.53489, GreaterEqual} *) Why does this take a long time ...
460 views

There seem to be lots of papers discussing the functional programming paradigm terminology for Haskell, such as monad, category theory, lambda calculus, *morphism, etc. People study concepts and ...
271 views

### Slow JoinAcross performance

Bug introduced in 10.3 I am using JoinAcross to combine two datasets, where the key is an Integer. ...
137 views

### TableDirections example produces an error message

Bug introduced in 10.0 and fixed in 10.3 Can anyone replicate this? In Mathematica 10.2 on Win 64: TableForm[{{a, b}, {c, d}, {e, f}}, TableDirections -> Row] ...
432 views

### Issues adding properties to multigraph

Bug persisting through 12.0 Unsupported Functionality (loosely, a bug) Mathematica (as of 11.0.1 for Mac OS X x86 (64-bit) (September 21, 2016)) does not support multi-graph where edge properties ...
199 views

### One less arrow vector than asked for

Bug introduced in 10.0.0 and persisting through 11.0.1 or later Consider the following code: ...
679 views

### Interpolation on an unstructured (mostly-structured) grid in 4D+

I frequently need to perform interpolations on an unstructured grid. Mostly, with the purpose of filling grid holes and then later continue with regular grid interpolations. Mathematica V9 and V10 ...
920 views

### How to export .mtl files for 3D textured objects

I would really like to deploy my textured 3D graphics in the web with sketchfab in my blog. Unfortunately, Mathematica only exports the shape of the 3d graphics, i.e. the .obj file, but omits the ...
367 views

### Can I use symbolic tensors for simple linear algebra and calculus?

As an example, I'd like to calculate this symbolic derivative: $\frac{\partial}{\partial b}(x-A.b)^{\mathsf{T}}.(x-A.b)$ where $x$ and $b$ are vectors and $A$ is a matrix. What I tried is this: <...
4k views

### Threads vs Cores: How many kernels need to launch in parallel Mathematica?

I have a dual-core intel machine. I would like to test how many parallel local kernels should be launch to get the optimized performance. Knowing that the HyperThreading technology of Intel could run ...
303 views

### Is there a way to teach integrate new solutions?

I have an integral which I can solve, but integrate cannot: ...
494 views

### Proving (self) similarity with Mathematica - Reccurrence Plots, Similarity Plots etc

I posted this question in math.se but given the sheer tumultuous number of questions that keep appearing on math.se and also given that I am trying to accomplish this in Mathematica, I thought I'd ...
129 views

### Scheduled tasks and dynamic updating

Here is an example: x = 0; Dynamic[x] now please run: SessionSubmit[x = 1; Pause[10];] Problems: Annoying one: ...
127 views

### Orderless breaks pattern match

Bug introduced in 10.3 or earlier and persisting through 12.0.0 10.0.2 is not affected. I am perplexed by the effect of Orderless on pattern matching. Starting ...
103 views

### What changed in String handling between 11.0 and 11.3?

I was trying to optimize some String-handling code here using my standard trick of converting it to a list of bytes first and using basic list operations instead of ...
250 views

### Is Tooltip broken in MMA 11.1.1?

Bug introduced in 11.1.0 and persisting through 11.2.0 I have just discovered that Tooltip works differently from as described in the documentation, at least in my ...
188 views

### Best Practices for Creating CDF e-textbook

I attended a talk given by Eric Schulz a few years ago. It was similar to his talk "Sharing Wisdom Gained from Publishing a CDF Ebook" given here. I am Math instructor and have been creating ...
318 views

### Factorize trigonometric matrices

Consider two square matrices $A_1$ and $A_2$. Consider the following matrix involving matrix trigonometric functions: M_1(t)=\begin{bmatrix} \cos(tA_1) & t\mathrm{sinc}(t A_1) \\ ...
884 views

### Convert Mathematica graphics to TikZ?

Is there a package to convert Mathematica graphics to TikZ code (for inclusion in LaTeX source files)? Such a package, dated 2016-01-30, is described at http://library.wolfram.com/infocenter/...
170 views

### Is ExportString defective in V11?

Mathematica doesn't do the best job of exporting figures with shading or transparency to vector graphics formats such as PDF. A common trick employed here and elsewhere on the web to workaround this ...
183 views

### Is it possible to search the web by image from Mathematica?

Is it possible to perform a web search based on an image input? There are several services that provide this: Google, Bing, TinEye, and maybe others. I am not sure which can be accessed ...
231 views

### How do I determine which ChartElementDataFunction is Automatic?

In the course of exploring @kglr's answer to Edmund's question gain some insight into how I might answer my own question here, I came across the undocumented ...
627 views

### Incorrect Display on Linux (+HiDPI)

I have Linux on a HiDPI laptop, and after first installing Mathematica, the default font size is far too small: After searching for a few solutions, this can be fixed by either changing the ...
337 views

### After editing a file Mathematica 10 interprets […]^2 as […(])^2

Bug introduced in 10.0 and persisting through 10.2 or later This is a very weird bug and I don't really know how to reproduce it, so I'll just copy-paste the whole code ...
217 views

### Autocomplete of non-global functions

In Mathematica 9 and 10 they added autocompletion. Out of the box this works great, but when I set the CellContext to "Notebook" ...
740 views

### How does Mathematica find a series expansion of expressions containing logarithms when there is a singularity at the expansion point?

I am looking for a good approximation to a function containing logarithms, especially at values close to zero. When I used Mathematica's Series command I found ...