9
votes
2answers
6k views

Mathematica sporadically crashes on open

Sometimes, when I open Mathematica, while the opening splash screen still says "Initializing Kernel Connections", Windows will tell me that "Wolfram Mathematica 9 has stopped working". This will ...
9
votes
2answers
719 views

Export list elements each to it's own page in a multi-paged PDF document

I have a list, myList, of let's say 20 (different) objects myList = Table["object", {20}] I know would like to export every ...
9
votes
2answers
871 views

Customize your FrameTicks in a MATLAB way

The figure below is made by MATLAB. However, the scientific form of numbers in FrameTicks that how MATLAB deals with is quite different from that of Mathematica. ...
9
votes
1answer
1k views

How to stop the Kernel from running wild?

How to abort or stop this (accidently large defined) SparseArray production? s = N[SparseArray[Table[{2^i, 4} -> i, {i, 30}]]] Alt+. or Alt+, seem to give ...
9
votes
1answer
721 views

How can I display a multigraph with different colored edges?

I'm new to Mathematica(version 9) and I'm trying to display a multigraph with different colored edges. Here's my code so far: ...
9
votes
1answer
402 views

How to provide your own example data for a custom package?

A nice feature of the mathematica documentation is the copious use of ExampleData in illustrating functionality. I would like to provide some example data for a ...
9
votes
6answers
456 views

How to make text flash for a short period

How could I display text that flashed red for a half second or so and then reverted to black? (Or was put in bold and reverted to normal, etc.)
9
votes
5answers
547 views

How to resize the text content of a grid with it?

I am in a resizing mood these days. This code works quite well, up to a point. ...
9
votes
5answers
6k views

Notation of partial derivative

I want to write partial derivatives of functions with many arguments. Why is it that when I type f[x,y] ctrl+6 (0,1) it turns out to be bad syntax? The output of ...
9
votes
1answer
315 views

Suppress Mathematica Kernel taskbar tab when using .NETLink

Is there a possibility to suppress the Mathematica Kernel taskbar tab when accessing it through .NETLink on Windows?
9
votes
6answers
2k views

Producing cleaner Mathematica output

I asked this in chat and it turns out it would make for a good question make a posting for. I am writing up a handout type notebook and I'd like to have some clean output for presentation's sake. ...
8
votes
3answers
230 views

How to create a version of FixedPointList for asymptotically periodic functions?

I need to efficiently generate a bunch of bifurcation diagrams. A simple familiar example illustrates the efficiency problems I'm running into: ...
8
votes
1answer
343 views

Alternative to Subsets to generate k-combinations

I need to generare a huge number of k-combinations for a quite big set of numbers (more than 100), so I would avoid Subsets because it requires too much memory (it generates all subsets at once). I ...
8
votes
1answer
108 views

SparseArray output triggers “unsafe dynamic content” warning

The first basic example in the documentation of SparseArray: ...
8
votes
3answers
443 views

Changing the atom color for plotting xyz-files

Mathematica takes the standard color code for atoms when plotting an *.xyz file, but I want to customize the color for the specific atoms. I really become desperate as I did not get it so far. ...
8
votes
2answers
238 views

Understand MeshFunctions with Intercepts

Bug introduced in 7.0.1 or earlier and persisting through 10.0.2 or later While I've been thinking about this question, I tried to visualize the Intercepts. I use three snippets, actually snippet ...
8
votes
2answers
198 views

Does PrivateFontOptions -> {“OperatorSubstitution” ->False} fail in version 10?

Please consider the following, version 10.0.1, OS X Mavericks: ...
8
votes
2answers
280 views

How to reduce the number of operations needed to evaluate an expression? [duplicate]

For some numerical calculations in C++ I have, for example, this complicated expression to evaluate. Given as Mathematica input, in its original form it is ...
8
votes
1answer
169 views

Different behaviours of Default Argument

I don't really understand the behaviour of Default Argument. If I execute this command in Mathematica: In: {f[a], f[a + b]} /. f[x_ + y_.] -> p[x, y] ...
8
votes
2answers
401 views

Tally repeated evaluation of function

How can I tally the result of repeated evaluation of a function? n=100000; f[]:=RandomInteger[{1, 4}] Tally@Table[f[], {n}] When ...
8
votes
1answer
970 views

Why doesn't FullSimplify get rid of the common factor in this expression?

FullSimplify does not get rid of the z factor in the following expression: ...
8
votes
3answers
1k views

How can I recreate Trott's Riemann Surface plot in Mathematica?

In reading Michael Trott's Visualization of Riemann Surfaces of Algebraic Functions, he has: ...
8
votes
3answers
688 views

How can I find the vertexes of a Polygon?

I made a polygon with the following vertexes : ...
8
votes
1answer
399 views

What is a good coding style for setting and changing application level constants?

Background: Every application has user-definable constants. The Java language has the Properties class to handle them. Question: What is a good and re-usable coding style for setting and changing ...
8
votes
1answer
458 views

Locking a value when Manipulating variables

I'm trying to achieve something similar to Bret Victor's brilliant Scrubbing Calculator in Mathematica. By using Manipulate I'd like to change the values of the variables such that if I modify one ...
8
votes
1answer
1k views

Handling failed FindRoot calls

I want to handle FindRoot calls which did not converge (e.g "thrown" error message FindRoot::cvmit) ...
8
votes
5answers
382 views

How to distinguish between lists and values?

I have a (hopefully small) problem with some numerical integration algorithm, more specifically I want to integrate the imaginary part of a complex valued function, e.g. ...
8
votes
3answers
978 views

Efficient image Import

I have several sets of 20 images I need to import. Each time they have different categories. "Name"<>"Cat"<>"No" Electric B 1 for example. I need to create lists that contain the images ...
7
votes
1answer
77 views

Is it possible for librarylink function to be Listable like that in Compile? [closed]

We know in Compile, there is an Option RuntimeAttributes -> {Listable} which can let the compiled function easily explore the ...
7
votes
4answers
291 views

Dynamic Epicycles

Thanks to all the thorough answers and comments, I've written the following code, which builds a variable number of epicycles. However, when I apply the formula ...
7
votes
3answers
370 views

FEM Solution desired for “Plate with orifice” deflection: Application of Boundary Conditions and use of Regions

I found the deflection of an orifice plate (circular plate with a hole) subject to uniform pressure using Mathematica's NDSolve functionality. The plate is fixed at its outer circumference and is ...
7
votes
2answers
112 views

How to make a notebook take action whenever a particular symbol is defined or redefined?

For teaching purposes, I want to create a Mathematica notebook that will "notice" when the user defines or redefines a variable or function of a particular name, so that it can check the value and ...
7
votes
2answers
374 views

How much time should one give Mathematica for an integral evaluation?

Sometimes when I do integrals in Mathematica (M), it keeps thinking and thinking and I have no idea what is going on inside M. For how long should one wait or how does one know whether M has not got ...
7
votes
6answers
645 views

How to draw a dodecahedron with each face modified to a pentagram?

I'd like to draw a dodecahedron with each face carved on the sides so it becomes a pentagram. I wonder how to start to do this kind of task in the Wolfram Language? Edit: The result should still be ...
7
votes
2answers
293 views

How to make a binary function associative? (Or define an n-ary function?)

Suppose I have a simple function that I assign to an operator f[a_, b_] := a + b CirclePlus = f Then I want to write ...
7
votes
1answer
348 views

Computing launch parameters for hitting a point in 3D with projectile under influence of wind

The end goal of this problem is to compute functions which describe the launch parameters which are needed to hit a specified goal in 3D in the presence of wind disturbances. This is as far I have ...
7
votes
2answers
244 views

Apply ColorFunction to an Image [duplicate]

is there a faster way to change the colors of an image from grayscale to something like this: ...
7
votes
1answer
303 views

A smarter nested With?

I often find myself writing code that looks a bit like this: ...
7
votes
1answer
393 views

Poincaré map for dynamic billiard

There's a very nice demonstration of dynamic billiard written by Dan S. Reznik that can be found on demonstrations wolfram(along with the code): here I was thinking whether it would be possible to ...
7
votes
3answers
1k views

Suppress extrapolation of interpolating function in a ContourPlot

I have defined an interpolating function, myfcn[x], valid on the domain x = 0 to 1.5. I am then using ...
7
votes
2answers
517 views

A topoplot function for Mathematica

Matlab's EEGlab toolbox has a topoplot function: http://sccn.ucsd.edu/eeglab/ A typical topographical plot of an EEG signal is given below: How can I reproduce this in Mathematica. I know that ...
7
votes
1answer
317 views

Dataset and string conversion, using Internal`StringToDouble

i'm trying to get familiar with the new Dataset-stuff in Mathematica 10. As it will (hopefully) provide some benefit for me, I have started to convert my app to move from list and list of rules to ...
7
votes
1answer
502 views

Why Plot3D does not accept Epilog option

I am trying to visualize 3D points with Plot3D using the option Epilog. If you check the options of Plot3D ( Options[Plot3D] ), it can be seen that Epilog is one of ...
7
votes
2answers
257 views

Evaluation in lambda function

If I have a function, that returns a function, for example: f[a_] := a^2 * # & then f[3] == 3^2 # & Is there a way ...
7
votes
3answers
364 views

Where did I go wrong with my implementation of the trapezoidal rule?

One method for doing quadrature, called the trapezoidal rule, improves accuracy by connecting the points on the curve corresponding to the points of subdivision with line segments, forming trapezoidal ...
7
votes
1answer
935 views

Getting clearer StreamPlot output

When I do a StreamPlotof a rather complicated pair of differential equations, it loses some details. For example: ...
7
votes
2answers
1k views

Manipulating plot of random iterated function system fractal

I'm generating the Sierpinski Gasket by implementing a chaos game in Mathematica. What I'd like to do is create an interactive manipulation with a slider, whereby moving it forward, plots all the ...
7
votes
2answers
165 views

Making ColorSetter work like a PasteButton

I might be missing something obvious here. I am building a palette for constructing code to make certain graphics. The idea is that my colleagues can click buttons instead of having to know the right ...
7
votes
1answer
514 views

How to plot points with uncertainties and dates assigned?

I want to plot a graph from list of points, but each point also has uncertainty assigned AND date. Without uncertainties DateListPlot works great, without dates ErrorListPlot works OK, but how it ...

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