7
votes
0answers
509 views

Inverse Laplace transform not obtained

I can't seem to be able to compute the inverse Laplace transform of a Laplace transform: ...
7
votes
0answers
178 views

What Method options does FindInstance accept?

While answering Trouble getting FindInstance to return multiple results for certain constraints it became clear that for this problem FindInstance would be better ...
7
votes
0answers
111 views

Using citations with Workbench

I have written a tutorial (.nb file) for a package using Workbench. In the tutorial there are some citations created with the recently introduced citation management system. They are simply numbered ...
6
votes
0answers
91 views

Exporting a compiled function for later use

I compiled a function then used it in NMinimize. The computation took 19 seconds. Then, I exported this compiled function and restarted MMA and imported this ...
6
votes
0answers
96 views

In version 10 EvaluationCompletionAction “ShowTiming” no longer gives useful output; any solutions?

In version 10 using this Front End option no longer gives useful output: SetOptions[$FrontEnd, EvaluationCompletionAction->"ShowTiming"] In version 7 the time ...
6
votes
0answers
171 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 ...
6
votes
0answers
109 views

Partial Differential Equation in Parallel

is there any native way to implement multi-core parallel solving of PDE in Wolfram Mathematica? WM 10 now supports Finite Elements Method, but it is actually useless without parallelization. Usually ...
6
votes
0answers
51 views

Issuing user-defined messages takes a long time (Message is slow)

Issuing messages takes a very long time in version 9 and version 10. Can others reproduce this? Is there a fix? Update: This is slow only when using the front end, but not when running the kernel ...
6
votes
0answers
55 views

GraphicsGrid Format Problem with SpanFromAbove

I believe this is a bug in GraphicsGrid. ...
6
votes
0answers
174 views

Performance tuning - Explicitly set Mathematica use Nvidia GPU for rendering

I feel hesitated to ask this question, but I cannot figure out a way to increase the performance. The problem is about running this featured example on a computer with both Intel HD GPU and Nvidia ...
6
votes
0answers
82 views

HighlightGraph and Hyperlink

In the documentation of Mathematica it is mentioned that you can use Hyperlink and Tooltip as wrapper in a similar manner as ...
6
votes
0answers
126 views

Automatic replacing of [ with []

I tried to modify the KeyEventTranslations.tr file in order to always place a closed bracket instead of an open bracket once I press ...
6
votes
0answers
149 views

Incorrect evaluation for Thue-Morse signed harmonic series

I would like to evaluate $$s = 1 - \frac{1}{2} - \frac{1}{3} + \frac{1}{4} - \frac{1}{5} + \frac{1}{6}+\frac{1}{7}-\frac{1}{8} - ... + \frac{(-1)^{\textrm{binary digit sum}(n-1)}}{n} + ... $$ where ...
6
votes
0answers
180 views

Where to download the MathWorld package?

I was trying to run some notebook I downloaded from MathWorld, but lots of them need << MathWorld`Curves` I tried to google it , only to find this, but ...
6
votes
0answers
188 views

Poor CUDALink performance, when calling a kernel multiple times

When working on a project of mine I noticed that CUDALink shows very poor performance when calling CUDA kernels multiple times in a loop-construct. To demonstrate this I put together this little ...
6
votes
0answers
128 views

Possible bug with FourierTransform linearity

Each component is easily transformed but the sum is not: FourierTransform[f''[x], x, k] FourierTransform[f'[x], x, k] ...
6
votes
0answers
151 views

Documentation for user-defined functions; undocumented documentation feature?

I stumbled on some strange behaviour when trying out the new function template and documentation features, now purportedly working in v 9.0.1. I defined a function ...
6
votes
0answers
112 views

Manipulating the pitch of a sound

After reading Manipulating a continuous stream of sounds I have to ask about controlling the frequency of a Sin sound in a continuous manner, with a ...
6
votes
0answers
185 views

Keyboard issues with Mathematica 9.0.1 for Linux

After working for a while with Manipulate function and increasing the number of variables to be manipulated, keyboard stops working properly in the Notebook. It ...
6
votes
0answers
134 views

Using FunctionExpand to evaluate symbolic derivatives

Some symbolic derivatives of certain special function are not expanded automatically, but FunctionExpand often helps to get a derivative-free closed form ...
6
votes
0answers
78 views

Slow NIntegrate over complicated domains (sometimes)

Overview I have a very large matrix I need to calculate where each element requires the integration of a product of two functions over some complicated domain. I would like to find a set of options ...
6
votes
0answers
192 views

How can I find the source of a memory leak?

I found a really weird issue using NDSolve`ProcessEquations inside module. We start by setting HistoryLength to 0. After this we define a function which takes in an integer and creates a Table of ...
6
votes
0answers
130 views

Fourier transform over a custom dimension

I have a multidimensional array A. Fourier[A] finds the discrete Fourier transform over all dimensions. How to find discrete ...
6
votes
0answers
94 views

Detect when InputField gets keyboard focus

How might I detect when an InputField comes into focus? For example ideally something like this would work. ...
6
votes
0answers
57 views

Is there a way to get BSplineFunction beyond MachinePrecision?

I have been using BSplineFunction (Mathematica 8) to generate a smooth representation of some data, which I might then do some further processing on. As I ...
6
votes
0answers
257 views

Remote Kernel - Error = MLECONNECT

Configuring a remote kernel with the Kernel Configuration Basic Options I manage to have a new kernel in the list of the kernel that I can open. However when I start the new kernel I get asked for the ...
6
votes
0answers
87 views

Automatization of SyntaxInformation and argx?

Does anybody have a good way to automate the setting of SyntaxInformation for any custom function? I have a ton of functions for which I want to set SyntaxInformation, and doing it by hand seems a ...
6
votes
0answers
69 views

How can autocomplete entries be added for DownValues and Properties?

I'd like to assign DownValues to a symbol like this x["firstvalue"] = 1; x["secondvalue"] = 2; And then have the ...
6
votes
0answers
110 views

Is there a function to generate a minimal clique cover?

This is a graph problem known as the "Clique Edge Cover" or "Intersection Number" problem, and the goal is to find, from a given graph like $E=\{\{a,b\},\{a,c\},\{b,c\},\{b,d\},\{c,d\}\}$ and ...
6
votes
0answers
171 views

Is it possible to run Mathematica on an HPC cluster with Torque?

I'm installing Wolfram gridMathematica in HPC cluster with TORQUE Resource Manager. There is a big problem because Mathematica suppost PBS pro. Can you help me or give some advice or coments?
6
votes
0answers
180 views

Using perpendicular offsets in FindFit

I want to use perpendicular offsets in the built-in FindFit function. Are there any possible ways or do I have to code everything by myself?
6
votes
0answers
95 views

Compiled function crashes kernel when trying to list over different length arguments

I'm trying to speed up a tally/binning operation that I have to run many times. I have many lists of between 1 and 10 numbers from the range [1,5] and I want to ...
6
votes
0answers
108 views

Design considerations behind `O` (a.k.a. BigOh, a.k.a. Landau Order)

This works without any warnings: O[Log[x]]. This raises a warning: O[x^2]. I have a few questions around this: Why is it a ...
6
votes
0answers
163 views

Using stateful web services with Mathematica 9

The WebServices package in Mathematica 9 no longer seems to support stateful web sessions. This requires the client (i.e., the WebServices package) to pass back the HTTP Cookies that it receives from ...
6
votes
0answers
160 views

Calculating the rank of a huge sparse array

By virtue of the suggestion in my previous question, I constructed the sparse matrix whose size is $518400 \times 86400$, mostly filled with $0$ and $\pm 1$. Now I want to calculate its rank. Since ...
6
votes
0answers
138 views

Mathematica 7: “LessEqual::nord:” error when using NMinimize on a real function

I encounter a problem (Mathematica 7) similar to Strategies to avoid LessEqual::nord in NMinimize? but the advised strategies don't work for me. Also, I get different results with different ...
6
votes
0answers
136 views

In .NET/Link, how do I not open multiple kernels?

I'm writing an ASP.NET page intended for multiple users. On the backend we have datatypes that are primarily mathematical, and interact with Mathematica for string-to-double evaluations, among ...
6
votes
0answers
290 views

Reproducing the Integral Definition of the Modified Bessel function

I need to simplify some integral expressions in terms of special functions, such as the modified Bessel function of the first kind. See for example Eq. (5) on this page. Notice that the real ...
6
votes
0answers
318 views

Incomplete implementation of units?

I've been playing around with the new units capability in MMA9 and I'm becoming a bit frustrated with what I perceive as an incomplete implementation of this capability and I'm wondering if there are ...
6
votes
0answers
95 views

Associating symbol pages with symbols (Workbench)

Normally when you have symbol Abc, WorkBench creates a symbol page named Abc. Then when you make a build, type Abc and then press the F1 key, you are sent to the Abc symbol page. Suppose however ...
6
votes
0answers
500 views

Changing the background images of a slideshow presentation

Mathematica 9 lets you create presentations with background images. There are 6 default stylesheets for this: Earth, Garnet, Sapphire, Opal, Sunrise, Steel and Water. For your existing ...
6
votes
0answers
235 views

Realtime audio processing using Dynamic

Can I make real time audio processing with Mathematica in the same way I can do with images using Dynamic[CurrentImage[]]. I know that is possible to use ...
6
votes
0answers
774 views

Limiting the use of discrete graphics card on Mac

Apple's laptop running Mac OS have a pretty nice feature to make the battery last longer: the dynamically switch between the low-power integrated graphics card and the higher-performance dedicated ...
6
votes
0answers
178 views

Page Break Adjustment In Long Documents

Has anyone else had trouble in relocating page breaks in a long document? In a ~45 page long document I wanted to keep certain things on the same page. The system worked on the first three or four ...
6
votes
0answers
439 views

Optimizing NIntegrate for higher PrecisionGoal

By default, NIntegrate works with MachinePrecision and its PrecisionGoal is set to ...
6
votes
0answers
382 views

Sensitivity Analysis: Global Sensitivity and Screening

I have a model which accepts several input parameters and now I want to study the sensitivity to certain parameters as described in here: Cross Validated Answer and in Wikipedia. There is also a link ...
6
votes
0answers
429 views

Using Mathematica as a data visualization front end for .Net applications?

I have a C# application that has 3-dimensional data that I wish to plot. Controls in C# for surface modeling are, in my experience, rather limited. I wish to have my C# application send the 3D point ...
6
votes
0answers
231 views

How to produce the ILU0 or ILUT as stand-alone procedures on sparse matrices?

Mathematica uses the ILU0 procedures automatically to precondition large sparse linear systems; e.g. ...
6
votes
0answers
137 views

TeXToBoxes and BoxesToTeX BoxRules options

A recent question has gotten me to look more into the tex conversion rules. Consider the following latex string: ...
6
votes
0answers
396 views

Increasing recursion speed in Hull-White trinomial tree calculation

First timer here and have been finding these boards very useful in learning Mathematica. I'm trying to implement a numerical procedure for the Hull-White trinomial tree in Mathematica. Despite using ...

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