2
votes
2answers
558 views

Combine multiple notebook files into a pdf/rtf/word/etc file?

It's the end of the semester and I have a prof who wants me to turn in a printout of the nb files ive worked on. I have 33 separate files, and I was wondering if there was any easy way I could combine ...
3
votes
2answers
384 views

Plotting the deformed shape of a rectangle

I want to plot a rectangle using graphics : rc = Graphics[{Blue, Rectangle[{0, 0}, {1, 1}]}]; and add a deformation function to it: $$\chi(\mathbf ...
3
votes
1answer
160 views

Little problem with Through

list = Partition[Range[20], 5, 5, 1, {}] {{1, 2, 3, 4, 5}, {6, 7, 8, 9, 10}, {11, 12, 13, 14, 15}, {16, 17, 18, 19, 20}} ...
0
votes
1answer
410 views

Maximizing trig functions in Mathematica

Just to give some context, my motivation for this programming question is to understand the derivation of the CSHS inequality and basically entails maximizing the following function: ...
6
votes
2answers
555 views

Finessing labels in BarChart

BarChart is aggravating. Why don't the following correctly display both percentages and labels? (1) ...
3
votes
1answer
268 views

Equating two lists, element by element

Say you have two lists: listA = {a, b, c} listB = {d, e, f} How would you produce a listC that equates each of the two's ...
6
votes
1answer
424 views

Workbench install 64-bit on Windows 7

I have downloaded the Workbench 2.0.0 zip file and followed the install new software -> add -> archive steps to install the workbench plugin. After that, the Workbench core and webMathematica tools ...
2
votes
1answer
349 views

Problem with Sinc[x] function and rounding

I seem to be having some trouble with the Sinc[x] function, and I think it's due to rounding, but I'm not sure. The code is below, with relevant constants: ...
3
votes
1answer
278 views

Daubechies scaling function

In Mathematica in wavelet package with the following codes Phi[x_, j_, k_] := 2^(j/2) WaveletPhi[DaubechiesWavelet[3], 2^(j) x - k] Mathematica computes ...
11
votes
4answers
2k views

Plotting ErrorBars with a different style

I would like to plot the error bars of ErrorListPlot with a different style than the points. I know of ErrorBarFunction, but ...
4
votes
0answers
170 views

Solving a nasty equation

Here's an equation that I need to solve for $t_k$ $$ \theta_0 = \tan^{-1}\left(\frac{2(w_x - m)}{p - g {t_k}^2 - 2 t_k w_y}\right) - {\frac{1} {r}} \left( \left(\frac{m}{t_k}\right)^2 + \left( ...
0
votes
0answers
54 views

Is there a way to add arrows along a parametric curve inside a manipulate function? [duplicate]

I cannot find a good way to add arrows along a parametric curve that I used NDSolve to get. I have written everything inside ...
1
vote
0answers
83 views

How can I compile function with Apply?

For example, I tried to compile this function but Mathematica gives "The only function arguments supported are Times, Plus, or List", I have no a way to compile this. ...
0
votes
0answers
31 views

“Go back” and “Go forward” in help? [duplicate]

This is a duplicate question with Gestures for forward/backward in help browser (particularly on a Mac). Please close this question. In IE, we can "go back" by Alt+←, and "go forward" by Alt+→. This ...
0
votes
0answers
52 views

Is there a way to add arrows along a parametric curve inside a manipulate function (Mathematica)? [duplicate]

I cannot find a way to add arrows along a parametric curve that I used NDSolve to get. I have written everything inside Manipulate. ...
0
votes
1answer
382 views

How to make Graphics3D object with different colors

Here is a sample Graphics3D object: ...
1
vote
0answers
99 views

Optimized subset algorithm implementation

I was reading a paper from Mathematica Journal.It mentions a code for calculating subsets. ...
7
votes
2answers
162 views

Is it possible to find a CellularAutomaton behind a sequence of 2D Tables

Maybe this is a hard question, maybe not. Whoever knows the answer can help me a lot starting working on CA theory. Let's suppose I have a sequence ...
0
votes
1answer
64 views

Function that displays set of integers fulfilling constrictions

I would like to make a function of three parameters $i$, $j$ and $k$ that displays a list of integers fulfilling some criteria. Specifically the set of integers is: $\zeta_{ijk} = ...
1
vote
2answers
428 views

Image Restoration

I want to degrade the image, and then execute the restoration, such as a lena.jpg. I tried this: ...
0
votes
0answers
58 views

NMinimize and FindRoot Issues with System of Equations [duplicate]

I am trying to solve a constrained optimization problem with a system of transcendental equations and am running into issues with NMinimize. I have a system of equations (...
4
votes
1answer
135 views

How can I test properties of a symbol without unwanted evaluation

Problem How to get the head, size, dimensions, etc. of a symbol without evaluating it? Since Mathematica does not allocate fix storage space and type to symbols it is not trivial to query runtime ...
7
votes
3answers
678 views

How do I find the intersection of a closed 3D curve given by numerical data with a specified plane?

I have a list of 3D data points which form a closed curve. My own data can't be easily generated analytically, but the qualitative behaviour is well represented by a parametric curve families such as ...
6
votes
2answers
654 views

Animated Vector plot

I'm trying to make an animation of a time-varying 2D vector field. However, I'm got a difficulty in that Mathematica normalises the length of the vectors with each call to ...
0
votes
2answers
253 views

Seeking faster method than using Table and If together [duplicate]

See the example below. Is there any way to make this execute much faster and still get the same output ? I have read Conditionals slower than operators? but it didn't really help me as I can't seem to ...
1
vote
0answers
176 views

Conditional solution for system of linear equations

I have a linear equation system Q.m = t, with m unkown and where Q has dimensions ...
1
vote
2answers
513 views

How to place Plot Information within a Text box on top of a Bar Chart?

How could I place a text box on the top of a bar chart where the top line would have a larger font size than the second line? My Data: ...
3
votes
1answer
284 views

How to determine cluster membership using FindClusters?

I have a 1000 by 3 data matrix in which for each person we have 3 scores. I want to cluster those persons into 8 cluster using Agglomerative method. I did the clusetring by: ...
5
votes
1answer
359 views

How to add equations' left and right sides together?

If we have two equations E1 and E2, and instead of using Solve to solve it, we simply need to manually add them up which would allow some simplification that could ...
2
votes
0answers
204 views

Problems with Simultaneous Equation Solving

Let me first explain what I am doing and then I will explain the problem that I can't figure out. I am basically trying to solve 2 equations for 2 unknowns (a1 and ...
1
vote
0answers
150 views

Why doesn't ParallelMap improve the performance of FoldList?

This question arose during my analysis of the following problem: filling gaps. (The code used here is Simon Woods's work.) FoldList seems to not cooperate with ...
7
votes
1answer
211 views

FullDefinition and Module local variable

I have a question about FullDefinition and how it interacts with the local variables of Module. I've created a few functions ...
0
votes
1answer
441 views

Hue-like Legend spectrum with bright colors for a plot

I use Hue to color ArrayPlot: ...
5
votes
0answers
228 views

Exporting large numbers in WDX format

I have a list of 10 000 3×3 matrices in Mathematica. The entries are rational numbers. I would like to write this to a file so I can load it again in the future. After some fussing with file formats, ...
0
votes
0answers
30 views

Keeping memory to reduce the running time of recursion [duplicate]

I am using the following recursion in Mathematica to compute W[n, 1, s] for given n and s: ...
2
votes
4answers
242 views

How to improve the quality of the ListPlot output

I need to plot massive data stored in external ASCII files. Below is the Mathematica code I use for this job: ...
6
votes
1answer
513 views

What does ` symbol in ClearAll[“Global`*”] mean?

I have found an example for clearing all symbol definition by: ClearAll["Global`*"] But what does the symbol ` mean? It isn't the apostrophe ', yet it is not ...
5
votes
3answers
449 views

Getting RGBA data from an image

What is going on with returned data in the following examples? It appears ImageData returns different types depending on the what data is passed into ...
3
votes
1answer
103 views

Generating Palindromic_number [duplicate]

I'm trying to construct Palindromic_number, I came up with this code: ...
3
votes
1answer
186 views

Real integral evaluating as indeterminate

Mathematica evaluates the following integral as: ...
13
votes
10answers
630 views

How can I generate a nested array like this one?

Well, this is how the array looks like: I came up with this code: n = 10; Nest[ArrayPad[#, 1, 1 - #[[1, 1]]] &, {{1}}, n] /. {1 -> "*"} Any better ...
1
vote
2answers
305 views

Finding normals to a curve through a given point

I want to find x on curve $y(x)$, where curve $y(x)$ is perpendicular to point $(x_0,y_0)$. for this I minimize the distance between points $(x,y(x))$ and $(x_0,y_0)$, here's an example for point ...
3
votes
2answers
216 views

Modify all the second elements of every pair in a list of pairs

I have a list in the form {{a, 1}, {b, 2}, {c, 3}}. Let's say I want to operate a transformation on all the second elements of each sublist, but this transformation is a function of them all ...
18
votes
4answers
2k views

Plotting a contour on a torus

There are two ways to consider a two-dimensional torus. One way is to take a parallelogram (let's say the square $[0, 1]^2$) and topologically glue the opposite edges. Another way is to look at the ...
14
votes
1answer
272 views

Dynamic and LibraryLink: dynamic visualization of a simulation

I am asking this question to save some time and I am expecting answers only from people who have tried something like this before. (I realize that I could just try it and see if it works, but that ...
7
votes
3answers
871 views

How to connect Mathematica 9 to MS SQL 2012 using Windows 7 enterprise (64-bit)

I have used Microsoft Open Database Connectivity (ODBC) with Mathematica 8.0 and MSSQL 2008 on Windows XP, but I can't get it to work on Windows 7 Enterprise (64-bit) with Mathematica 9.0.1.0 and MS ...
11
votes
1answer
104 views

When is the output of examples in function documentation rasterized?

Upon building documentation in Workbench, Workbench sometimes converts the output of examples on function pages into rasterized images, and sometimes not. Does anybody know what controls this ...
9
votes
3answers
443 views

FindShortestTour for charity (or: How can I optimize meal delivery with FindShortestTour?)

I've been wondering about this for a while - but never got around to asking - until I saw faleichik's incredible answer to Mathematica Minecraft. I did some work at a not-for-profit a little while ...
4
votes
2answers
900 views

Why isn't autosave enabled by default?

While I've come across several ways to implement/enable autosave (see: Is there a notebook autosave frequency configuration?, Saving my code before cell evaluations: Insurance against front end ...
2
votes
1answer
972 views

Excel DDE Link: reading and writing in real time

I'm wondering if it is possible to link Excel and Mathematica in real time, so that Mathematica can be used as a computing and "storage" tool. Suppose I have an Excel spreadsheet with an active DDE ...

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