# All Questions

667 views

### Aligning axes labels on multiple plots

I'm trying to create some "publication quality" figures, but Mathematica is fighting me all the way. So my question is: Should I switch to Origin? Please help! Well, all joking aside: I'm trying to ...
375 views

### Mathematica 9 can't integrate this function but earlier versions could

Integrate[ ArcTan[x]/(1 + x) Log[(1 + x^2)/2], {x, -1, 1}] I used Mathematica 9.0.1 on Windows7 32bit, Mathematica 9 cannot compute this, but Mathematica 8 gives ...
238 views

### label all vertices in polygon plot

Let's say I have the following plot Graphics[{Opacity[0.2], Rectangle[{0, 0}, {4, 4}]}] And I want to label all vertices on the graph to give their coordinates, in ...
828 views

### Why are my plots displaying behind the axes?

I need to create graphs with light gray axes and black lines. All of my plots display behind the axes. How can I make the plots display over the axes? ...
363 views

### Parametric Plot of coupled differential equations

I am able to plot a graph of all the differential equations, but I'd like a parametric plot of each individual one. Here is what I have so far. ...
350 views

### Create polygon using edge lengths and area

Four-sided convex land plots are usually denoted with edge lengths and area. How do I create a Polygon Object with these parameters in Mathematica ?
98 views

### Interpretation of output derivative expression [duplicate]

I am trying to write Mathematica file to find Div, Grad, Laplacian, etc. in coordinates ...
122 views

155 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}} ...
305 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: ...
443 views

### Finessing labels in BarChart

BarChart is aggravating. Why don't the following correctly display both percentages and labels? (1) ...
177 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 ...
237 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 ...
275 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: ...
195 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 ...
1k 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 ...
142 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( ...
49 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 ...
76 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. ...
30 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 ...
41 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. ...
253 views

### How to make Graphics3D object with different colors

Here is a sample Graphics3D object: ...
92 views

### Optimized subset algorithm implementation

I was reading a paper from Mathematica Journal.It mentions a code for calculating subsets. ...
145 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 ...
60 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} = ...
319 views

### Image Restoration

I want to degrade the image, and then execute the restoration, such as a lena.jpg. I tried this: ...
56 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 (...
114 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 ...
560 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 ...
491 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 ...
206 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 ...
133 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 ...