# All Questions

292 views

### TabView: Reset some dynamic variable on tab selection

Given a TabView panel like this one TabView[{ DynamicModule[{x = False}, {Checkbox[Dynamic[x]], Dynamic[x]}], "foo"}] I ...
174 views

### Are webMathematica functions totally different compared with Mathematica?

Recently, I configured WebMathematica in my system. I tested with inbuilt examples, all are working fine. Basically, Helloworld ...
119 views

### Set theoretic operations on sets of real numbers

I have two pieces of code that produce a bunch of real numbers, say $A$ and $B$ respectively. (It is not relevant to the question, but $A$ consists of eigenvalues of the Hamiltonian of some physical ...
296 views

### Numbering nested list according with Depth (or Level)

(This question is slightly similar with Sequentially numbering a nested list, but not exactly the same.) What I want Say I have a nested list ...
221 views

### Assigning colors to Graphics3D objects from an ordered list

I'd like to draw a set of spheres with colors assigned from a defined set. To provide an example, say I wish to draw a set of three spheres of radius 2 at the positions: {{6, 5, 10}, {1, 4, 20}, {2, ...
343 views

### Why Interpolation makes ListPlot3D slow?

I'm trying to use ListPlot3D to plot some data, and I'm using the InterpolationOrder option to make the plot smoother. But the ...
341 views

### How to get the correct answer when solve this equation?

I want to find the values of the parameter $m$ to the graph of the funtion $$x^4 - 2 m x^2 + m + 1$$ has three extremal points make an equilateral triangle. I tried ...
195 views

### how to solve a linear system (Ax=b) using domain decomposition?

The Domain decomposition is a natural technique for reducing the computational cost for solving large-scale linear systems, somebody know how to do it using mathematica?
93 views

### How to make AutoAction take effect only one time?

WARNING: better don't try this when you have any relevant notebooks open, the generated palette will edit your currently selected notebook in ways which are not easily noticed or undone! ...
126 views

### Applying a function of several arguments to the rows of a matrix

I have a user-defined function which takes three vectors as input. Suppose that is like this: f[a_, b_, u_] := Total[a*Total[u]^b] Usually I have vectors for ...
139 views

### Double integral 0

I am trying to reproduce the results from a paper in Mathematica. This task involves $K$ double integrals of the form $$\int f(x,y)g(x)dx,$$ where $f(x,y)$ is a bivariate normal density with mean ...
365 views

### Using LatticeData to fill a space with spheres in a face-centered cubic (fcc) lattice packing arrangement

I have a large sphere of radius $R_1$ which I would like to pack with $N$ smaller radius of radius $r_2<R_1$ arranged in a face-centered cubic (fcc) packing arrangement (i.e. Kepler's optimal ...
187 views

### Finding the largest integer that cannot be partitioned in a certain way

I want to use Mathematica to solve the problem: Find the maximum $k$ such that $6x+9y+20z=k$ does not have a non-negative solution. I tried FrobeniusSolve. ...
108 views

### Solving one equation, then inputting the values into another for NonlinearModelFit

Considering the equation a*x^3 + a*x^2 + x + b == 0 I'm looking to find the best value for a and ...
197 views

### Behavior of copy and paste with different image formats

Ok, let's say I create a 1x1 pixel image. i = Image[{{0}}, "Byte"]; Now I Export["image.png", i] the image and import it into ...
72 views

### Import and file symbolic links

Can Import be forced to follow a file symbolic link (a.k.a. alias (Mac) or shortcut (Windows)) to the true file?
681 views

### Google API and URLFetch [duplicate]

I am trying to systematically obtain the distance between two given locations using the Google Maps API Distance Matrix facility: developers.google.com/maps/documentation/distancematrix/ From the ...
172 views

### Indicating the probability that a weather datum is above/below some given value on a geographic map

With help of the previous questions here, I am analyzing weather data as daily MeanWindSpeed of some cities with the following code: ...
110 views

### How to fix the number and length of vectors when using ListVectorPLot

I want to plot only the vectors that I specify in my list of vectors, and no more. ListVectorPlot plots many of them, namely plots the field extrapolating from my four vectors.I would also like to ...
230 views

### Collect pattern (Log's)

Is it possible to apply "Collect" command (to put Log's in particular combination) to factor out (pattern) a particular form from the full expression. For example, consider the following expression: ...
107 views

### Issue using the Cases function when forming a function of parameters

This is my code so far: ...
145 views

### Change some option of a function when calling it [duplicate]

Say I have defined some function like f[p_] := Plot[Sin[p*x], {x, 0, 2 Pi}] Now in most cases, I just need to specify the value of ...
675 views

### Is there a way to plot the derivative of an implicit function in mathematica?

After having read the manuals and searched extensively, I could not find a way to do the following. Suppose you have an implicit equation of the form $y^4 + y^5 = x$, and $y$ is a function of $x$. ...
190 views

### Using Element[]

Can the Element[] function only be used for the domains given in the documentation? I am trying to use it to determine if a value is contained in a previously defined list. Thanks!
154 views

### How to change the format of all inline cells

DefaultNewInlineCellStyle only take effect for newly generated inline cells. for example ...
344 views

### Create list via checkboxes

I am trying to achieve the following: Three (dynamically updated) Checkboxes (a, b and c) can be toggled on or off individually. Depending on their status, a ...
180 views

### Different Chapters in Different Files

I was wondering if there is a command to change the counter to adjust its numbeing to having different chapters saved as separate files. This seems possible with page numbers but not section numbers.
46 views

### Difference between matrix rapresentation [duplicate]

I've noticed different behaviour in Mathematica between matrix representation: The matrix a={{1,2},{3,4}} is different from b=a // MatrixForm Why i obtain ...
216 views

### Where will I put packages?

Recently,I got WebMathematica. Initially I searched WebMathematica documentation in Mathematica documentation, but it doesn't return any results. For this I read tutorials; finally I placed the ...
687 views

### How to split compound polygons into convex polygons?

Is it possible to split non-convex polygons into convex plygons with Mathematica 9? For example: ...
193 views

### warnings shows up in message window

I have no idea why, but suddenly all my evaluation with warnings like "sum does not converge" has begun to show up in a message box. Since always they appeared between In[] and Out[]? How do I make ...
601 views

### How can I calculate the correlation dimension and/or the Lyapunov exponent of a time series using Mathematica

I have a pretty long time series (4000 data points). How can I calculate the Correlation dimension and/or Lyapunov exponent for such data? Please also advise on how to import the data as well.
86 views

### Why BoundedDiagram fails?

I have a set of points: ...
197 views

### How to find the package file that stores a certain symbol?

Is it possible to figure out in what file a certain packaged symbol lives in (assuming there is no shadowing between multiple identical symbol names)? I would like to have a function that if, given a ...
344 views

### How to use output from previous line in Plot? [duplicate]

Suppose, I want to solve a equation and want to obtain it's first root. In this case I've used In[1]=:Solve[b^2 + b*z + 1 == 0, b][[1]] This gives ...
83 views

### Fastest way to select the longest cell

I'm trying to learn low-level notebook programming and I have a question. Is there faster way to select the longest cell in a notebook than this: ...
79 views

### How can I view WebMathematica documentation in Mathematica documentation? [closed]

I want to view WebMathematica documentation in Mathematicadocumentation,for that I read the following link. I followed same ...
868 views

### Convolving/integrating problems

Let's say I want to convolve two functions (f and g), a gaussian with a breit-wigner: ...
256 views

### How to make the Menu key on my keyboard work in Mathematica

My Menu key works in Windows Explorer, Internet Explorer, many apps, but does not work in Mathematica's notebook. The function is like that of Right-Click with the mouse. Function expected: Select ...
168 views

### Copy As Latex automatically alphabetizes words

If you take the following line, right click on it and Copy As Latex: ...
178 views

### Plotting a mixture CDF with a truncated distribution in version 7

I'd like to plot the CDF of the following pdf in Mathematica 7: $$f(x)=0.1 g(x)+0.85 m(x)+0.05 h(x)$$ where  \begin{array}{ccl} g(x)&:&P(0)=1,\ P(x\neq 0)=0\\ ...
211 views

### Visualizing multi-state lattice from a data set

Is there any way to make Mathematica visualize a multistate square lattice? That is, I have a data set from a simulation that is x coloumns wide and y rows tall (just a simple .dat file), where each ...
240 views

### Row Alignment in Grid

I've been working on creating tables of differences in MAA similar to the image below, but with a bit more detail: I've written a function that will take an anonymous function, a range of values ...
622 views

### Configuring Remote Kernel via terminal in Linux

There's a server at work, which I would like to use as a remote kernel. I have access to it via terminal (server is running Red Hat, my client Windows 7). I don't know if the kernel is set up or not, ...
224 views

### Is it in general faster to get the eigenvectors and eigenvalues of a dense array rather than a sparse array?

I always thought that things in general go faster when working with sparse array but, I got this: Eigenvalues::arhm: Because finding 144 out of the 144 ...
414 views

### Extracting text from nested HTML lists <ul> <li>

We wish to analyze the tree structure of HTML documents that consist of nested lists, ie, using the HTML tags <ul> and ...
154 views

### I want to change the outer background color of a manipulated plot

I downloaded some demonstrations' sources (for example) and I want to change their colors. I am only stuck with the white outer background that is around the plot's yellow background. I would like to ...
273 views

### Is there any function that creates an array from 1 to n, repeating each value m times?

I am trying to implement SparseArray, using the function With to give the condition for different matrix elements. I would need ...