# All Questions

177 views

### Using data from multiple cameras

ImageCapture[] has an option Device-> for specifying which camera to use, but ...
87 views

### Changing all link destinations in a notebook

I have a bunch of cells containing text and hyperlinks. i.e. of the form: ...
517 views

### Mathematica 9 link in OriginLab

Hi (I am an absolute newbie), I need to send Mathematica data to the program OriginLab to plot and change the graphs. Does anyone know if it is possible to send data from Mathematica 9 via ...
2k views

### How to set a zero offset for the frame origin?

I want to set a zero offset for the frame origin. In other words, the horizontal axis should start at exactly the lower bound, instead of having a small offset. For example, in the figure below, ...
166 views

### Creating a Table of Items for GIF creation

I want to create a table as shown below so that the steps from the first item to the second item, and the second item to the third item, etc. can be animated. I am not at liberty to post tested ...
906 views

### Blend code for built-in ColorData schemes

Hi I want to get a blend similar to "SunsetColors". To make those slight modifications, I would like to know the precise blend of that color scheme. My try: ...
793 views

### How to properly project a Graphics object consisting of line primitives

My problem starts from attempts at depicting overlapping lines of different thickness, i.e. ...
135 views

### Implementing a back button (in CDF)

I have a rather large notebook, which contains a lot of hyperlinks to different parts of the notebook. Is it possible to make a back button (maybe as a docked cell button?) so that when a reader ...
139 views

### How can I make check boxes that put elements into a list?

Right now I have a blank list that I am putting in Manipulate[]. I want to be able to choose whether 1,2, or 3 are in this list by setting z1,z2, z3 as True or False: ...
284 views

### Mathematica .m file can not open in Ubuntu

My operating system is Ubuntu. I add some new .m file to /usr/local/Wolfram/Mathematica/9.0/AddOns/Packages/ and then call for it in Mathematica, but failed with the message Get::noopen: "Cannot open ...
298 views

### in search for mathematica function similar to imagesc in matlab

Simple question: Is there any built in function for images that acts similar to imagesc in matlab, i.e. take grayscale image scale it to use full [0,1] range and then use some kind of colorgradient to ...
842 views

### Convert String to List of Numbers

I want to create a function that when a string is entered it will turn it into a list of numbers, these numbers are the numerical form of the characters in the string. e.g. a=1, b=2, c=3, d=4 and ...
3k views

### ContourPlot Legend with colorbar for arbitrary contour values

I have a ContourPlot in which I have specified the contour-values myself as Contours->{0.01, 0.05, 0.1, 0.2, 0.3}. I would like to get the corresponding contour-values to be shown in the color-bar in ...
379 views

### Mathematica9: NDSolve slows down after repeated calls

I have noted that in Mathematica 9 my code, which involves a lot of calls to NDSolve, slows down considerably after some time. Apparently, the problem is NDSolve itself and it seems to be related to ...
3k views

### Find a best fitting curve for some data with no regular pattern

Suppose some data with no regular pattern is given, so common patterns of functions all fail to fit it. Then how can one find the best fitting curve? I believe there will be some data for which we can ...
260 views

### How to define delayed coupon payment for FinancialBond?

When the coupon calculation end date falls on a holiday, it is customary to delay the coupon payment to the next working day. E.g. a bond may have a monthly coupon calculation period of 2013 Jul 18 to ...
291 views

### Infix form of PutAppend ( >>> ) does not work with variable

I'm new to Mathematica, so I suspect this question involves either a misunderstanding involving variables or the usage of >>>. On a webMathematica page ...
206 views

### Image Tooltip exported to HTML

Graphics@Tooltip[Hyperlink[{Purple, Rectangle[{0, 0}]}, "http://www.wolfram.com"], Graphics[Disk[]]] Is it possible to make image tooltip kept in the html?
113 views

### PostProcessing TraditionalForm output to append a vertical bar?

This simple task is giving me trouble. Suppose I'd like to take the output from TraditionalForm[Integrate[x^2,x]] and post-process it to append a vertical bar ...
1k views

### How can this type of optical illusion be created in Mathematica?

I see these around the web and would like to make them in Mathematica. Combining them in an array is actually quite mesmerizing!
133 views

### How do I use a while-loop to find the gain of a transfer function's limit?

At the moment I can find the limit of my transfer function as follows: (5 4001.6)/(5 4001.6 + (4 + s) (200 + s)) /. s -> 0 This works as I would expect and ...
326 views

### Understanding “IntensityData” coordinates

Update - Playing around a bit, is it true that we need to process the list of "IntensityData" values $r$ as follows: r = Partition[r,k]; r = Transpose@r; And ...
247 views

### Hide both input cell and output cell

You can double-click the right gutter of a input cell to hide a corresponding output cell or double-click the gutter of the output cell to hide the input cell. I would like to hide both the input and ...
588 views

746 views

### How can I make a notebook with two column layout?

How can I make a notebook with two column layout? Is it possible? I saw something tools could do such thing? Author Tools?
180 views

### How can I make notebook cell's background become transparent?

How can I make notebook cell's background become transparent? And can be saved as html with the translucent or transparent effect? One of the use is in HTML files, the background of cell hides the ...
232 views

### Find time since last 0 in list

When I have a list of data (measured per day), is it possible to define a function that gives the nr of days since the data has been 0? I tried working with...
787 views

### RSquared Mathematica Excel incoherence

I've done a NonLinearRegression with this data ...
348 views

### RevolutionPlot3D: revolving around a line NOT an axis [duplicate]

Is it possible to revolve a function around a line instead of an axis? For instance I would like to revolve the quadratic function: f[x_]:=-0.45(x-1.5)^2 ...
364 views

### Complement on pre-sorted lists

Is there any way to instruct Complement to skip the sorting part? If the answer is no (likely), the next question would be: how can I remove from a sorted list ...
178 views

### Understanding the computation of IntensityCentroid?

If I have an image img, and I ask ComponentMeasurements to return "IntensityValues" for the ...
559 views

### NDSolve: ProcessEquations and Reinitialize with Piecewise functions

I am having trouble with using NDSolve`Reinitialize when the system consists of a piecewise function. If we define the ODE system ...
2k views

### when is f@g not the same as f[g]?

I have always thought that f@g will give the same result as f[g] in all cases, and it is just a matter of style which one to use ...
1k views

### Why cant I open CDF's in the Chrome browser on Linux?

I have google chrome on ubuntu 13.04. Every time I try to run a CDF on wolframs website, I'm required to download the CDF first, and then open it in my computer, but when I was using windows it was ...
250 views

### Partitioning a list of 2D points into sublists that fit into non-overlapping equal-sized squares [duplicate]

I have a set of {x, y} coordinates, for example: ...
1k views

### How can I save the current evaluation state of a notebook and start from it later?

I currently have a nested Table command running (in Mathematica 9), with two progress bars to track the variables. I have to shut down or hibernate the computer in ...
1k views

### Manipulating Frame labels when legends are also there

I am plotting a few curves inside a frame with labels on three of its sides; left, right and bottom. I want legends to be places at the top. The problem which I am facing is that the top label ...
239 views

### Key Mapping in Command Line Mode

I would like to map Ctrl-U to "kill line" when using Mathematica 9.0 in command line mode (i.e. not within the front end, but when called from a Unix command line by "math"). I am aware that (on a ...
1k views

### “Unflattening” a list

Imagine we have a list with some hierarchical structure: list = {{{2,3},{2,4}},{{{3,4}}},{{5,6},{7,8}}}; Which we then flatten to some level in order to process ...
506 views

### ArrayPlot and non-integer PlotRange

There seems to weird bug regarding non-integer PlotRange in ArrayPlot. For example... ...
2k views

### 3D Phase Portrait with direction fields and sample solution curves [duplicate]

I have seen NDSolve and ParamtericPlot3D used for things like the Lorenz Attractor, but was wondering if there is a way to draw a 3D phase portrait for a system. Something akin to this: ...
65 views

### Get the unevaluated expression from a numbered cell

If a cell exists as below: In[1] := (xyPoints = {{1,2},{2,5},{3,10}}; ListLinePlot[xyPoints]) Is it possible to get at the expression rather than the plot shown ...