2
votes
1answer
149 views

Using NSolve on an equation that involves Mean and TruncatedDistribution

What I would like to do is create a mixture distribution that has a specified mean by varying one parameter in the distribution. To do this I've written the following code; ...
1
vote
2answers
161 views

Why does Evaluate[a[[1]]]=0 assign a value to a variable while a[[1]]=0 doesn't?

I'm trying to do a small page counter with Mathematica, for leting me know about my reading progress on some books. I'm stuck on a problem: ...
5
votes
1answer
409 views

Invisible \[Conjugate] glyph in the linux frontend

I have a very annoying problem. The Conjugate glyph (*) does not show when I type. That is, if I type \[Conjugate] or ⋮co⋮ then ...
4
votes
2answers
319 views

remove quotes in a combination of a text with graphics in the JournalArticle Style

I have a puzzling and very specific question. It may be of limited interest to community. I apologize in advance in this case. Let us see. I am making an illustration to a text that I write in the ...
4
votes
3answers
536 views

How do I make a frequency heatmap?

I have an array of data that has repeats in it. I want to generate a heatmap depending on how much repetition each point has, as in how many times it is repeated.
6
votes
3answers
458 views

Non-linear scaled X axis in DateListPlot

I have a lot of plots like this in Mathematica: And I would like to transform it in something like that: Where the information between 0 and 7 hours and 18 and 00 hour is "compressed" in the ...
4
votes
1answer
105 views

How can I set ScriptLevel to be 0 for inline math mode?

I hate small integral signs and thus I like ScriptLevel to be 0. I have set ScriptLevel to be 0 for Text cells, DisplayFormula, and InlineFormula. When in a text cell I press ctrl+( to create an ...
0
votes
1answer
243 views

Plotting partial sums and its Cesàro means

I have the function as shown in the first line of the code and its partial sum in the second line of the code below. ...
2
votes
1answer
386 views

Obsolete Signal Processing functions

I need some tools to detect the fundamental frequency and pitch of a sound. I Googled for "pitch detect" and found some .nb files that do these tasks, but all the files are in Mathematica 3.0 format. ...
4
votes
0answers
120 views

Symbolic solution to ODE, pure InverseFunction not evaluated

I'm new to Mathematica and I don't understand why in the solution of the following ODE, the #1 in the pure function is not immediately replaced by the corresponding ...
2
votes
2answers
760 views

defining recursively a function with multiple if conditions

I am trying to recursively define a function which satisfies the following system of equations and which depends on two parameters $n$ and $l$, $$ \begin{align} A(x, n, l) &= F[ A(x,n-1,l) ]\\ ...
20
votes
1answer
219 views

Why Trace[] shows some internal warnings on a standard Plot command in V9?

For fun, I like to use Trace with option TraceInternal->True to see if I figure how some of the commands work internally. I ...
4
votes
1answer
257 views

Row inside FrameLabel doesn't work in Mathematica 9

So as to automate/customize plot titles I use Row inside e.g. FrameLabel: FrameLabel -> {"x", "y", Row[...]} Now with ...
0
votes
0answers
154 views

Using Control Objects with TabView [duplicate]

I have a number of different tabs on my 'dashboard'. Each tab has a few different Controls (drop down boxes) that the user makes selections with. These selections determine what is displayed on the ...
9
votes
1answer
925 views

Coding mistake? [closed]

I have just started using Mathematica with v9.0. I am trying to follow a computation from a book on Fourier series with the function $f(x)=x$ on the interval $-\pi < x < \pi$. Here is the code ...
2
votes
1answer
177 views

What Cell Option Controls Group Indentation?

I am working on a stylesheet for a handout I am making and I want to make my own "definition" box format. So I use the "Format"->"Edit Stylesheet" menu option and get the stylesheet inspector. I then ...
16
votes
4answers
2k views

Printing exported PDF graphics fails (version 8)

When I export even simple graphics, say, a DateListPlot to PDF under Windows, it refuses to print on any of the printers at work. Acrobat (Reader X) throws three ...
0
votes
2answers
165 views

Automating the “Get Indices” right click function

Is there a way to do this? What I am trying to do is allow a user to take a lineout averaged over the rows of a user defined ROI (Region of Interest) of an image. I have the bit of code that allows ...
1
vote
1answer
302 views

Renaming files of form FileName(i).csv to NewNamej(k).csv where j increments and k resets to 1 when there is a jump in i?

Edit up top: The accepted answer works splendidly except I had to add //ToExpression to the end of the definition of ns given by ...
1
vote
2answers
743 views

Plotting a graph with conditions

I am a newbie in Mathematica and is currently using Mathematica v9.0. I would like to consult if anyone knows how can I plot a given functions with conditions as shown below on how they look like. ...
7
votes
1answer
1k views

How to convert from and to UTM coordinates in Mathematica?

How to use the UTM coordinate system (northing, easting) in Mathematica using the built-in functions (GeoPositionENU, ...
2
votes
1answer
212 views

How to override `?NumericQ`

I have a function myFunc which I is to be displayed cleanly if arguments are symbolic, but which can also be numerically evaluated. I do this by defining a ...
8
votes
4answers
719 views

How can I highlight the points lying between two lines in a ListPlot?

I have a list of numbers like the following: list = Table[RandomInteger[1000], {i, 1000}]; And I plot them so: ...
4
votes
1answer
159 views

RecurrenceTable with vector

Mathematica can do a RecurrenceTable with a vector, here is a simple example: RecurrenceTable[{x[n + 1] == 2* x[n], x[0] == {1, 2, 3}}, x, {n, 3}] with output ...
5
votes
3answers
791 views

Define an 'inner product' with AngleBracket

I want to define my own little 'Inner Product' function satisfying properties of linearity and commutativity, and I'd like to use the "$\langle$" and "$\rangle$" symbols to output my results. For ...
10
votes
4answers
319 views

Order items by closest to the previous

I have a list of 2D points (a table, imagine the data of a parametric plot shuffled) I would like to join the points with a line that starts from one of them and always goes to the closest one. I ...
2
votes
1answer
126 views

Import a file only if it contains a certain pattern

Let's say I have three files containing: File 1: x y z 1 4 6 File 2: x y z 2 5 9 File 3: x y z 5 4 8 My goal is to import the data from a file only if in ...
1
vote
1answer
354 views

How to find this convolution?

How can I use Mathematica to find the convolution $f*f$ for ...
2
votes
2answers
206 views

Modify a sub-part of a sub-list only

I have this list: a = {{{0, 0}, {1, 7}, {2, 0}, {3, 2}, {4, 7}}, {{0, 0}, {1, 0}, {2, 1}, {3, 2}, {4, 7}}} and I'd like to transform it to this: ...
3
votes
2answers
233 views

Adding a coordinate label to individual squares in ArrayPlot[…]

Can I write text, or add a specific text label to individual squares of an ArrayPlot[...] graphic? Specifically, I would like to assign an two-dimensional integer coordinate label to each square.
1
vote
1answer
131 views

Is there an easy way to specify an arbitrary two-dimensional Polyomino tiling in Mathematica 8.0?

Is there an easy way to generate an arbitrary two-dimensional Polyomino tiling: http://en.wikipedia.org/wiki/Polyomino? Specifically, I would like to generate an array of integer coordinates, for ...
0
votes
1answer
588 views

How do I plot a 3D vector field using a data file with three x y z columns?

I have a data file that is the solution of the laplace equation on a rectangular area, which has three columns: x, y and z with their numerical values. How do I plot this data into a vector field with ...
-3
votes
2answers
167 views

How to make plots scaling consistent when running a series of simulations?

In my function it returns a plot of my data, say example, using ListLinePlot, and this is the size I obtain: but when running a series of simulations inside a Table: ...
5
votes
1answer
1k views

How to correctly use DSolve when the force is an impulse (dirac delta) and initial conditions are not zero

DSolve (and NDSolve) return different and unexpected solution to differential equation when the input is an impulse. This is ...
7
votes
1answer
454 views

Setting default Mathematica version

Is there a way to set the default Mathematica version? I would like to run both versions 7 and 8 (on a Win7 PC), but when version 8 is installed it takes priority. Clicking on a notebook ...
0
votes
2answers
566 views

Why is Mathematica treating my text as input?

I have typed in some text input by using Alt-7 to convert everything into text, but why is text still evaluated? Or is there better way to make comments other than (* text here *), because in my text ...
3
votes
3answers
336 views

Correct way to populate a DiagonalMatrix?

I would like to create a series of correlation matrices that starts with : sensMat[[1]] = DiagonalMatrix[ { 1,1,1,1,1 } ]) // MatrixForm and iterates in 0.1 ...
6
votes
1answer
150 views

Implementing Remainder Tree

I want to implement Remainder Tree based on this. With the answers on SE I've come up with: ...
0
votes
0answers
1k views

How can I plot a function and its partial sums? [duplicate]

Possible Duplicate: How to Plot an Infinite Series Coding mistake? I have Mathematica v9.0 and I am a newbie to Mathematica. I am trying to plot a function $f(x)=x$ over the interval ...
1
vote
1answer
445 views

Converting Excel serial dates with NETLink

Excel serial dates are not straightforward to convert since they include non-existent dates, e.g. {DatePlus[{1990, 1, 0}, 59], DatePlus[{1990, 1, 0}, 60]} ...
3
votes
2answers
113 views

Nested List Product

I want to apply Times on the elements of a list such that: ...
1
vote
1answer
223 views

How do I expand a sum (again)? [duplicate]

Possible Duplicate: How do I expand a sum? How do I expand an equation in the given form: $\sum _{i=1}^n -2 x_i \left(-a x_i-b+y_i\right)=0$ into this form: $-\sum _{i=1}^n x_i y_i +a ...
4
votes
1answer
306 views

cannot open WSMLink

I'm evaluating Wolfram SystemModeler and I want to explore its capabilities together with Mathematica. Unfortunately, I don't manage to get WSMLink working. In the notebook I'm using I typed ...
17
votes
2answers
347 views

Why doesn't Mathematica use uniform criteria for validating Options?

Plot[Sin[x], {x, 0, 1}, pp -> 0] Gives as expected: Plot::optx: Unknown option pp in Plot[Sin[x],{x,0,1},pp->0]. >> However: ...
23
votes
1answer
885 views

Do you really want to quit the kernel? Yes!

When I have entered some bad code and hit shift+enter before thinking about the perils of finite RAM my computer obviously starts suffering. I have found two options that usually lets me recover ...
1
vote
2answers
274 views

How to make a Tooltip display dynamic based on a parameter value?

If k=3, then I would like the following to say "Sine Curve, k=3" when you hover over the output of the Tooltip command: ...
4
votes
2answers
255 views

Question on operator: // N

I've seen a notebook with the following: ...
8
votes
2answers
351 views

How do I get the equivalent of the $\LaTeX$ \tag{} in Mathematica?

How do I get the equivalent of the $\LaTeX$ \tag{} in Mathematica? $a+b=x \tag{1}$ I'm not necessarily asking how to use the $\LaTeX$ \tag{} itself in ...
2
votes
0answers
500 views

Is it possible to extract the rules of cellular automata as Mathematica code?

I would like to run cellular automata in the vertical direction if row index is greater than column index and in the horizontal direction if row index is less than column index, in a square array ...
3
votes
1answer
996 views

Lorenz map for the Rössler system [duplicate]

Possible Duplicate: How to find all the local minima/maxima in a range I have the solution of the following non-linear system: ...

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