9
votes
0answers
360 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. ...
9
votes
1answer
142 views

Algorithm used by IsomorphicGraphQ

I'd like to know which algorithm is used to test if two graphs are isomorphic?
9
votes
3answers
365 views

Why does Hash return different values in Version 7?

This function does not work correctly for me. The generated Gravatars do not match the ones actually produced by using the corresponding address. The problem was traced to differing output from the ...
9
votes
2answers
734 views

Coloring each face of a Cuboid with a different color

Is there a way to color each face of a Cuboid with a different color? I looked in the help but couldn't find anything. I found this Coloring the faces of a 3D ...
9
votes
1answer
235 views

How do I determine astronomical transit times?

Mathematica, through the "legacy" Scientific Astronomer package, used to have the ability to easily determine accurate transit times of astronomical objects simply, with ...
9
votes
5answers
266 views

How can I highlight one function in the Plot of a list?

I've got a Plot of a list of functions from this previous question of mine. ...
9
votes
1answer
146 views
9
votes
3answers
3k views

Expressing a decimal as a fraction in lowest terms

How can I express a decimal such as 0.1845095405274387 as a fraction in its lowest terms?
9
votes
1answer
638 views

CUDALink not working on Mac OS X

On my MacBook Pro, I have a CUDA enabled video card, yet Mathematica does not seem to recognize this. For example, following the CUDALink Setup, I get ...
9
votes
2answers
395 views

Restrict Locator to a certain graphic inside Manipulate

I would like to restrict the Locator inside Manipulate to a certain graphic. For example if I display two graphs, I would like to be able to click on the right one and use this information in other ...
9
votes
2answers
442 views

Shaping/simplifying equations in a certain way

A problem I am occasionally facing is to simplify an equation not to it's shortest form but to a form that is simple by other means. Often, this is grouping the term according to certain functions, ...
9
votes
4answers
545 views

ParametricPlot3D output without the meshlines

Caveat: Mathematica version 3.0. if (or when) it matters. I define a 3D-object with ParametricPlot3D, say, the following: ...
9
votes
8answers
475 views

Adding elements to a collection of lists

I would like to add element a at the start of a series of lists. For example I have a collection of lists called ...
9
votes
3answers
416 views

How to format numbers with at least one figure after the decimal point

I'm searching for a way to get Reals formatted with at least one figure after the decimal point. So e.g. 3. should be printed as 3.0 and ...
9
votes
3answers
240 views

Splitting a list in which figures vary from negative to positive

Consider the following list: data={4078, 256, -1266, -388, 1290, 1368, 1446, 1524, 2}; I would like to split any kind of such list always, when figures turn form ...
9
votes
2answers
300 views

Align Array Plots

I have two ArrayPlots that I would like to align but my "tweaking" failed yet. I would like each "row" to be aligned. ...
9
votes
1answer
365 views

Mathematica implementation of Earth Movers Distance?

Has anyone implemented in Mathematica the Earth Mover's Distance (EMD)? A concept dating back to Monge 1871, used to compare histograms and images, e.g., the CIEDE2000 Color Difference algorithm. ...
9
votes
2answers
890 views

Labels and tickmarks inside Frame

Is there a way to force Plot and related functions to place the tick labels inside, rather than outside a frame? For example, consider, ...
9
votes
3answers
332 views

Problem when defining variable in Mathematica

I'm trying to run this: domain := {n, 0, 10}; Plot[n, domain] but it doesn't work. Instead, it generates the message ...
8
votes
2answers
395 views

What are the standard colors for plots in Mathematica 10? [duplicate]

Mathematica 10 release appears to have changed the default styling of plots: the most visible changes are thicker lines and different default colors. Thus, answers to this stackoverflow question are ...
8
votes
1answer
254 views

Generating high quality charts in Mathematica for use in LaTeX and Word

I frequently have a probelem using my charts in reports because the text (axes labels and tick marks) look low resolution (fuzzy). When I export my charts, i export them as PNG files. Unless I'm ...
8
votes
1answer
139 views

AndersonDarlingTest and DistributionFitTest Leaking Memory

I believe AndersonDarlingTest and probably all other tests are keeping a copy of data somewhere and not freeing it: ...
8
votes
0answers
106 views

Esc-esc for special characters and autocomplete in Mathematica 9 [duplicate]

I recently upgraded to Mathematica 9 and have noticed a slightly annoying behavior that I was looking to remedy. In the past I would type special characters, e.g. ...
8
votes
2answers
214 views

PlotRangeClipping not working correctly with small ImageSize and PDF-export

Although Mathematica has some nice plotting capabilities, there are some things which are annoying me: I like to export a Graphics oder Plot to PDF for use in $\LaTeX$. I like to a have an ImageSize ...
8
votes
4answers
375 views

Partitioning a list by recursion (Programming Paradigms via Mathematica (A First Course))

I am working through the course Programming Paradigms via Mathematica. One of the homework exercises for the section Recursion I: Passing the Buck is as follows: Use recursion to partition a ...
8
votes
2answers
250 views

Correct way to generate large data sets (i.e.forward yield curve )

I would like to generate a set of forward yield curve matrix of size 1000 x 100. First I defined my SparseArray of 1000 x100: ...
8
votes
5answers
301 views

How can I find these patterns' signatures?

I think I can explain it best starting with an example. I have the following lists: ...
8
votes
2answers
203 views

Save notebook without including Front End version information

How can a notebook be saved without including the front end version? If you open a .nb file, you'll see something like ...
8
votes
1answer
338 views

Changing default ImageSize in the frontend?

I would like graphs to appear somewhat larger in my notebooks (running v8.0.4 on OSX 10.8.2). Naturally I can specify ImageSize in each individual plot, or drag ...
8
votes
1answer
123 views

Prevent Plus from threading InterpolatingFunction

For an InterpolatingFunction $y:\ \mathbb{R}\to\mathbb{R}^2$, Plus is unaware of this, so when I do any modifications to it in ...
8
votes
1answer
710 views

Efficient evaluation of functions defined by NIntegrate

I have a complicated function $f$ and I want to plot the function $F(x)$ defined by the definite integral of $f$ from $0$ to $x$: $$ F(x) = \int_0^x f(y)\mathrm dy. $$ Apparently $f$ cannot be ...
8
votes
1answer
317 views

Symbolic Integration along contour: branch cut problem?

Context Following this question on path integrals in the complex plane, having defined again a numerical and symbolic integrator along a path as ...
8
votes
1answer
370 views

Converting other C++ classes to MTensor in LibraryLink

Hopefully this will be a quick question + a quick answer: Say I have a C++ (or C) code using LibraryLink. I am using a library that defines a specific matrix class, as many numerical libraries ...
8
votes
1answer
676 views

RegionPlot (or FillingStyle) using hash lines? [duplicate]

Possible Duplicate: Filling a polygon with a pattern of insets I have a RegionPlot (and sometimes a regular Plot) where I'd like to shade two different parts of it two different ways. Since ...
8
votes
1answer
775 views

Exporting a Large Multidimensional Sparse Array

I'm trying to export a sparse array from Mathematica to share with collaborators who primarily use Matlab. The sparse array in question is 4 dimensional, (72 x 93 x 94 x 172) with ~4M non-zero ...
8
votes
1answer
3k views

how to make graphic timelines in mathematica

Hi does anyone know how to make timelines with mathematica? http://images.nationmaster.com/images/motw/atlas_middle_east/turkey_timeline.jpg something like that would be great! thanks
8
votes
1answer
434 views

Discrete coloring in Plots

I would like to have a plot that is filled to the axis with Green if the y value is greater than 10, and ...
8
votes
5answers
280 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. ...
8
votes
2answers
649 views

What is the Mathematica equivalent for the Excel function tinv()?

TINV() returns the t-value of the Student's t-distribution as a function of the probability and the degrees of freedom. For example ...
8
votes
2answers
290 views

Strange behavior of CreateDialog's WindowSize option

Compare the two dialog windows, created by the same code except in the first WindowSize has a value while I omit it in the second one. Note, that ...
8
votes
1answer
409 views

CDF and MediaWiki

Recently there was a handful of CDF embedding-related topics. However I would like to ask whether anyone has succeeded in embedding CDF into MediaWiki page? I've attempted to do so with the Widget ...
8
votes
2answers
265 views

WordData for other languages

Mathematica already includes dictionaries for a lot of languages. What I am looking for is a handy semantic/grammatic database for Hungarian, just like WordData for ...
8
votes
2answers
484 views

Most efficient way to obtain samples from high-dimensional multivariate distributions?

Is MultinormalDistribution[] efficient and easy to use for high dimensions? I have a variable $n$ representing the dimension of a Monte Carlo integration I do on a ...
8
votes
6answers
1k 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. ...
7
votes
2answers
218 views

Does FindFit support complex numbers or doesn't it?

Inspired by this previous question: Findfit doesn't give the good fit; Changing the starting values will not change the results. Consider the following complex-valued dataset. ...
7
votes
2answers
229 views

Finding all sets of elements with two common elements in a large dataset

I have a very large network of atoms ($\approx 10^6$ atoms) with fixed positions that resemble a cellular structure: I have two files including: fixed locations of each atom set of points which ...
7
votes
3answers
479 views

Any way I can solve this integral?

So, Mathematica can't solve it. Any workaround? \begin{equation*} \int_0^\pi \frac{1}{\sin\left(\frac{\theta}{2}\right)^\beta + 1} \mathrm{d}\theta \end{equation*} The code is: ...
7
votes
3answers
450 views

How to fix this memory leak

I am using halirutan's code in this thread to unflatten a list. It works very well but the problem is that the Module's local function f is not deleted when the ...
7
votes
1answer
176 views

Returning a value from a Module

In the following simple example MyMod := Module[{i}, Do[ Return[1], {i, 3} ]; Print["test"] ] I expected the module to exit on ...
7
votes
2answers
246 views

Is there a function which instantly tells you whether an element is part of a list?

I have a very long list of numbers and I want to check whether there's a function (something that would look like PartOfQ[element,list]) that tells you immediately ...

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