# All Questions

123 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 ...
279 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 ...
182 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 ...
430 views

560 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?
152 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 ...
227 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...
517 views

### RSquared Mathematica Excel incoherence

I've done a NonLinearRegression with this data ...
249 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 ...
305 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 ...
166 views

### Understanding the computation of IntensityCentroid?

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

### NDSolve: ProcessEquations and Reinitialize with Piecewise functions

I am having trouble with using NDSolve`Reinitialize when the system consists of a pieceise 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 ...
810 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 ...
212 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: ...
727 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 ...
975 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 ...
189 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 ...
874 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 ...
394 views

### ArrayPlot and non-integer PlotRange

There seems to weird bug regarding non-integer PlotRange in ArrayPlot. For example... ...
1k 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: ...
61 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 ...
281 views

### A problem on generating convex hull

For example, I typed the following: ...
894 views

### Parallelize plotting

I'm using Mathematica to make a few 3d plots. For the sake of generality, let's say they are unrelated to each other (so I can't imagine making a table out of them). However, the machine I'm using has ...
1k views

### Combining Cos[ ] terms

A function that is the sum of two Cosine terms of the same frequency x[t_] := a1 Cos[w0 t + b1] + a2 Cos[w0 t + b2]; can be simplified to a single ...
262 views

### Strange behavior on very large numbers

I want to test the value of a differential equation by replacing a solution and setting random values for r and z variables: ...
41 views

### NonLinearModelFit not generating a model without the use of “BestFit”, not sure why [duplicate]

This is my first time using NonLinearModelFit and I have run into an issue that I can't find an explanation for. The fitted model contains a ...
255 views

### How Do I Perform Simple Operations On The Elements of a Table?

I have been using the function HistogramList to generate frequency tables off a data set. The code looks like this: ...
94 views

### How to interpret and show an input number with the amount of significant digits given?

what can I do to have Mathematica intepret and show a number with exactly the amount of digits I gave as an input? I have a larger talbe with numbers (text file, whitespace seperated) which are ...
766 views

### How to set precision and format labeled Slider in Manipulate?

For my calculations, I need increased precision of parameter 'k' in my Manipulate: ...
495 views

### Count consecutive occurrences in a list above a certain value

I am trying to tally and sort the number of consecutive occurrences in a list above a certain value. For instance: ...
220 views

### Create continuous function from list

I have a list of data (measured per day) that I want to use as imput for another equation (say f). The problem is that the input I need for f needs to be a continuous function of time. Is it possible ...
133 views

### Moving a locator based on the movement of another

My problem is: I want two Locators to simulate a vector in the following sense: The first Locator is the base and the second ...
332 views

### Managing Stack Exchange favorites via Documentation Center

My Stack Exchange favorites are getting bigger and bigger. It is becoming unmanageable and is getting hard to find what I look for. A related question is Sort favorite questions. Is it possible to ...
556 views

### Legends for multiple curves

Dear users I am a new member here and I would like to ask a question about PlotLegends. I have multiple curves and want to make their legends bit more visible. ...
111 views

294 views

### Writing a function that returns a (usable) function

I am trying to create a function that returns Arnold's Cat Map of size n iterated k times. I can get something out of the Function command, but I can't figure out ...