# All Questions

808 views

### Generate a certain colorful triangle

I want to get a colorful triangle like this: I hope to get a triangle with any number of layers. This is my current method. Actually, I'm not very content with these graph theory functions, since ...
19 views

### How can I generate an interrupted projection of a world map?

How can I generate a world map like the one here, but for an arbitrary hand-drawn map? For example, starting from scratch, how can I manipulate this world map to get something that looks like ...
16 views

### Using RegionFunction with non-trivial Inequality

So I have been using ContourPlot to plot the zero set of a fairly unwieldy function, with many intersecting components. There's really only one of these components ...
41 views

### How to access box-and-whisker specifications from custom ChartElementFunction?

I am creating a custom ChartElementFunction for BoxWhiskerChart. I would like to access the box-and-whisker specifications from ...
28 views

### single slit diffraction numerical simulation

I'm trying to simulate the Fraunhoffer diffraction at slits(single,double,triple) with Mathematica. In the picture, the red one is analytical result and the green one is numerical result. The ...
26 views

### Multiple curves plot from excel

I want to have a multiple curves plot which describes the energies of electron respect to distance. After importing data from excel, I have a table as below. The first row is the distances. Each of ...
20 views

### Problem with “FrameLabel” when specifying Superscript, Italics, and Times (font)

I'm using FrameLabel to create the label "ln p'(t)" [which is, natural log of the function p'(t)]. This is to be publication quality, so I specify Times font, and Italics (see below). But the "prime" ...
29 views

### Translation especially in graphics

By running the following code: ...
32 views

### Complex function plot issue

I am plotting the real part of a simple complex function defined in two equivalent ways, and the plots do not agree. ...
77 views

### Bug with Compile and Log2?

It seems that Log2 in Compile gives numerical errors (CompiledFunction::cfn) if the input is ...
12 views

### With regards to the LogLogPlot on Wolfram alpha [on hold]

I plot Logplot for a function , it comes out nice, however when I plot the log log one, it doesn't work, Here are the images. Can someone tell me what's wrong here.
78 views

### How to create a window which will close in a certain amount of time?

I'm currently making an interface in Mathematica and I'll need to bump a window out and then let it close itself in a certain amount of time. Here's an short example to illustrate the effect: ...
18 views

### Solving Inequality with Exponentiation and Log

I have an inequality that I am not able to proove which is $Log[d] <\frac{(-1 + d^M) (d^M - d^N) N} {d^{M}(-1 + d^N) M (M - N)}$ with $0<\delta<1$, $M\geqq1$, $N>M$ and thus $N>1$. I ...
37 views

### Troubles with showing axis after saving in EPS

I'm trying to save a picture in EPS and then to put it into my LaTeX document. But when I put it the left axis is not shown. How do I fix it? (look at the screens) If I save the image in JPG, there'...
19 views

### Weird bug with Esc, string, and underscore?

There seems to be a bug with esc key, strings, and underscores. For instance, see the following code: a = f["1_2"]; If an esc character is typed anywhere ...
101 views

### Change bond cutoff distance when plotting .xyz files

When plotting a molecule from a xyz data file, Mathematica automatically adds the bonds between the atoms. But in my case it adds too many bonds, not only between nearest neighbours but also between ...
49 views

### Passing values from a list to Select during a Dataset query

Given a Dataset: ...
26 views

### Inverse Laplace Transform Failing: $\frac{1}{\exp (\beta \tau )-a}$

I have tried various approaches to get the solution to this inverse transform but all so far are failing. ...
19 views

### 3DPlot, Logarithmic x and y axes, Interpolating function

I've used NDSolve to get an InterpolatingFunction that solves a certain difeq. I want to see the behavior of this function on a couple different scales, so I want to use some sort of Log Plot. For a ...
22 views

62 views

### Error message when using Method -> “Spline” in Interpolation

I'm using the code: ...
121 views

### How to find Eigenvalues of Sturm-Liouville problem? Getting wrong Imaginary Eigenvalues

I want to find Eigenvalues of following Sturm-Liouville problem D[(2 - MA/κ[s]) q'[s], s] + W Ω^2 q[s] == 0, Where Ω^2 is the ...