# All Questions

93 views

### Detecting operator Set in Assumptions

Here is a typical issue: Simplify[x + y, x = y] produces 2 True. Is there a way to detect operator ...
659 views

### Is the source code available for examples in the “Mathematica Cookbook” by Sal Mangano?

I looked around a bit and didn't seem to find it. Not as obvious as Wrox books make it, for example. I came across a pdf of the book online [I paid for the paperback] but pasting the code from the ...
428 views

### Mathematica - set end-of-line characters when importing

I have a plain text file of tab-separated values that was created on a Windows machine. I want to import it into Mathematica on a Mac. ...
378 views

### How to find Image Size of a control object?

I want to find the ImageSize or at least dimensions of any control object irrespective of it being an image or an any other control such as ...
941 views

### Solve pair of recurrence relations

[Corrected equations and added simple example] Can you solve a system of (loosely) coupled recurrence relations like this in Mathematica somehow? ...
223 views

### Inputting abbreviated units [duplicate]

Possible Duplicate: Simpler input for the new unit support Is there a way to input abbreviated units directly from the keyboard? One can get a value with abbreviated units through the ...
107 views

### Force ellipsis to print an end of an expression

For pedantic reasons I want to display an infinite sum of fractions in fractional form (i.e. as 1/x not as x^(-1)) with an ellipsis at the end of the expression. I have tried a number of ways and ...
1k views

### can mathematica plot graph/visualize rotation matrices

just wondering is there any example online that show plotting of 3d rotation matrices like in the picture below (source)
348 views

### How to improve this dynamic progress bar code

I created this progress bar to use in my codes: ...
982 views

### stationary distribution of a transition matrix

How can I solve the stationary distribution of a finite Markov Chain? In other words, how can I estimate the eigenvectors of a transition matrix?
629 views

### Are there any openCL test suites?

I have a new ATI gpu that I have been trying on 3 different distributed computing projects. I get errors on each work unit. The errors indicate No Protocol which could be caused by a bad environment ...
252 views

### Using the elements of a subset in a Do loop

I would like to use the elements of Subsets in a Do loop. I have: ...
216 views

### Pattern matching a multivariate derivative

I can extract the parameters of a single variable derivative with the rule D[f[x], x] /. Derivative[order_][fcn_][variable_] -> {order, fcn, variable} ...
749 views

### X label in GraphicsColumn is cut off

I'm trying to use GraphicsColumn to plot two curves with very different ranges. for example, ...
2k views

### how to plot $x=0$ and $y=0$

I tried to plot plane $x = 0$ and $y=0$ with Plot3D[x = 0, {x, -4, 4}, {y, -4, 4}] but it seems that it didn't work out. How can I plot the above planes? Also ...
249 views

### LocatorPane, Dynamic and deleting locators

Compare the following two code snippets : Version 1 ...
466 views

### How can I suppress Print in parallel evaluation?

When using a function that includes Print statements, one can suppress the output by ...
656 views

### Problem with Union and Intersection

Consider the following: list={{a,b,c},{c,d,e},{d,e,f},...{x_,y_,z_}}; I would like to apply Union on the elements of the list ...
317 views

### Combining heads of lists so that you can create a nested list from two sublists

I have a list such as list = {1,4,3,4,6,3,1,2,3,4 ... } and a range, say, range = Range[20000]. I want to obtain the following ...
306 views

### n-fold symbolic integral in Mathematica

I am trying to compute symbolically a n-fold integral (n is a parameter of a function) over, say, the cube [0,a]^n. My code looks like this ...
2k views

### Plot Indefinite integral

I'm having a hard time to find a solution to a numerical limitation on mathematica: ...
970 views

### Defining an integer-valued function on an integer domain

This should be an easy question! I want to define a function with domain = the 12 integers {1,12}, with the values f[1]=31, ...
2k views

### How to change step size of ListPlot

The command ListPlot will plot lists with a unit step. Is there any way to change the step size of this?
63 views

### Front End does not respond to keys (version 10.2, Linux)

I was often complaining about the front end performance under Linux, but it seems I could pin down a very critical issue. I made a screen-cast that shows how to reproduce the issue Screen-cast on ...
85 views

### Memory usage optimization for a large Association/SparseArray

Reformulating my question in simpler terms. Take two lists list1 = RandomInteger[{1, 100000000}, 25000000]; list2 = RandomReal[{1, 10}, 25000000]; Make an ...
60 views

### Why isn't Table iterator value inserted in failed NIntegrate arguments?

Consider this simplest example: Table[{z, NIntegrate[f[x], {x, 0, z}]}, {z, {1}}] Here f is not defined, so ...
92 views

### Creating a nonlinear phase portrait

I am putting all of my code in one block for easy copy and paste. ...