0
votes
1answer
12 views

Merging two associations

I have two associations: ...
0
votes
0answers
30 views

How to create a vertical (smooth) Histogram on the y-axis of a function graph for an uncertain x?

This is my first time posting a question in StackExchange. I have encountered a certain problem and I can't seem too find a solution. Just a word of caution, I am kind of an amateur when it comes to ...
0
votes
0answers
2 views

Short way to query Dataset by the value of several columns

I learned how to query Dataset for rows that contain a certain value, but now I need to query for a long series of And in chain ...
17
votes
2answers
254 views

Where is the old option TraceInternal->True?

Already at least in version 2 (I think), the function Solve calls the function Roots. At that time, I had a rather dirty trick, that still works, to verify this: ...
0
votes
0answers
4 views

Limit Plot range to infinitely thin region [duplicate]

I want to plot a function only in a specific infinitely thin region, like e. g. ...
1
vote
1answer
71 views

How to assert that a list of variables is real in a nice and clean way

You can use the function Element to say e.g. $x,y,z\in\mathbb{R}$ via Element[x | y | z, Reals]. Now if I have a list of ...
1
vote
0answers
95 views

Creating an orrery

I am interested in creating an orrery, ideally with SystemModeler. I have been experimenting with the MultiBody library since that allows you to do animations. The most relevant example seems to be ...
0
votes
1answer
106 views

Help with functions in Mathematica

I'd like to make a function that has many parts. Doing this in something such as Java, which I am familiar with, would be simple. In Mathematica I have these "pieces", which I want to put into a ...
1
vote
0answers
70 views

Setting `ChartLabels` in a histogram

I have two data sets that I use to build a histogram in the following code: ...
0
votes
1answer
14 views

DiscretePlot3D: Part specification is neither a machine-sized integer nor a list of machine-sized integers

I want to plot a 3d Hystogram of a matrix and I am using this line: DiscretePlot3D[lmat[[x, y]], {x, 1, 3}, {y, 1, 3}, ExtentSize -> Full] where ...
2
votes
1answer
48 views

DateListPlot incorrect time zone

I'm trying to plot energy usage over time using datelistplot but the time zone on the ticks is wrong, data for 7pm shows as 3am The code: ...
11
votes
7answers
218 views

Splitting a list into increasing sublists

I have a list of numbers (say, for example, {1,2,3,4,3,2,1,2,3,4,3,2}), and I want to split it into sublists so that each sublist is the (smallest) sublist whose ...
0
votes
0answers
12 views
8
votes
1answer
68 views

Identity[x] function?

Today I came across the function Identity[x] in Mathematica (documentation). The example given in the documentation uses it in ...
2
votes
2answers
128 views

Can not generate graph using smooth kernel distribution

I am a newbie to Mathematica so this question might looks silly. I want to generate a smooth kernel distribution graph for this set of data. The data I uploaded has two columns, the first column is ...
0
votes
1answer
30 views

How to programatically remove an option for all cells?

I'm trying to remove the CellGroupingRules options in every cell in a notebook. Eventually I opened the Notebook in a text ...
6
votes
3answers
116 views

Which values did ImageAdjust choose?

I have a picture obtained from a camera in an experiment. It's a .dat file, contains only numbers. I can re-create the image by importing it as data and using the ...
1
vote
0answers
34 views

How to deduce the Ramanujan's summation of this series?

I have already asked a similar question about Ramanujan's summation in general but received no good answers. Now I am interested in this exact series: $$\sum _{n\ge1}^\Re (24 n + 12 n^2)$$
8
votes
4answers
598 views

Verify Cayley-Hamilton Theorem

Consider the matrix: A = {{-1, -4, -2}, {0, 1, 1}, {-6, -12, 2}} Now, the characteristic polynomial is found: ...
8
votes
2answers
262 views

Creating “detached” plots

Is it possible to create detached interactive plots in Mathematica like those in Matlab, Jupyter (IPython), rather than inline ones? This is interactive GIF from Rodeo IDE for Python as an example, ...
5
votes
1answer
54 views

Sensitivity of NonlinearModelFit to model

I have come across a circumstance where NonlinearModelFit is very sensitive to the model used. I am aware that NonlinearModelFit ...
3
votes
0answers
18 views

how to close all tagged input cells winout closing their output cells

I have tagged certain input cells I want to be closed during a presentation. I close them as follows: ...
3
votes
3answers
75 views

generating integer partitions

Mathematica can generate integer partitions of an integer $N$. For example, IntegerPartitions[4] quickly gives ...
0
votes
3answers
75 views

Keep leading/trailing zeroes (like Defer except with numbers) in a given number

I'm trying to write a function that counts the number of significant figures a given number has so I can ensure my calculations are rounded correctly; however, I am having a lot of trouble preventing ...
0
votes
0answers
89 views

Is it possible to have more than two vertical axis in Mathematica 2D plots? [duplicate]

Is it possible to have more than two vertical axis in Mathematica 2D plots? This is possible for example in matplotlib (plotting library for Python): ...
1
vote
0answers
98 views

Linear interpolation over 2 variables

I'm tuning a function to data over 4-5 variables using Differential Evolution. The objective function calls frequently interpolation function. I came to a point, where compiling the objective function ...
3
votes
3answers
133 views

How to Plot the PDF of Product of two Normals

I've been looking to plot the distribution of the product of two normally distributed variables, x and y, that are uncorrelated. I've tried symbolically calculating the PDF using the ...
0
votes
1answer
27 views

Manipulating form of output redux [duplicate]

To clarify the question that I posted here, I have the following question: I am generating a very large term by the following: ...
2
votes
1answer
74 views

What Method values are available for Plot?

The Documentation Center article on Plot notes under Details and Options that Method is one of the options for ...
0
votes
1answer
37 views

Specifying string patterns in a plain text

I need to extract three data, like that: (1.05, 1.37,A) from an imported list of plain texts: "... Syntax of parallax is : 'value quality [error] bibcode' value : parallax value quality : flag ...
0
votes
0answers
57 views

Manipulating output of polynomial expansion

I have the following short code which generates a polynomial: ...
2
votes
1answer
35 views

How to make a cell highlight on mouse down?

When a cell has WholeCellGroupOpener set to True, it becomes a clickable button that toggles its cell group open and closed. How can I make the cell change color ...
1
vote
1answer
55 views

solving a non trivial equation system

I try to solve a 4 equations, 4 unknowns system. Here is my code ...
1
vote
1answer
133 views

Appending elements to a list in parallel table

Is there any way to store values in a list that is being computed in parallel? For example, if ParallelTable is computing some ...
0
votes
0answers
56 views

Plotting 3D data as a surface [on hold]

I am having a problem plotting some data in a 3dimensional surface. These data are distributed like a surface. And I would like to plot them joining them all as a surface. The data are in the form ...
0
votes
0answers
34 views

part of piecewise plot now showing [on hold]

I solve two system of differential equations and plot the solutions separately just fine. Then i want to join the two graphs into one by using a piecewise function. The issue i'm having is only one of ...
15
votes
2answers
1k views

Scraping High-Res images from the MoMA and the Van Gogh Museum websites

Many art websites allow the user to zoom into an image to see it at high resolution by using image tiles. It is great on the website, but presents problems if one wishes to compile a complete high ...
4
votes
2answers
86 views
+50

How to group cell type A under cell type B?

My notebook's groupings for "Subsection" and "SubitemNumbered" are broken: And by broken, I mean I wanted it to automatically group like this which I did manually (with lots of control+shift+g) ...
0
votes
2answers
107 views
4
votes
1answer
111 views

Can I code a conditional jump between cells in a notebook?

How can I code the Mathematica equivalent of the following pseudocode: if[condition] ... goto[label_1] ... else goto[label_2] where ...
3
votes
0answers
146 views

Configuring remote access when using a VPN

To address some of the responsiveness issues, I use the Mathematica front end (v9 or v10) to access a remote kernel on a Raspberry Pi. The (advanced) kernel configuration used is this: Arguments to ...
17
votes
10answers
2k views

Determining the week of a year from a given date

Consider the following: AbsoluteTime["17/04/2012",{"Day","/","Month","Year"}]; From my calendar in my office, I know that April 17th is in the 16th week of the ...
5
votes
0answers
84 views

Finding quasi-cliques

What is the best way to identify quasi-cliques in a graph in Mathematica? I don't think it has been implemented, so are there any solutions to do this? Or do I have to export the graph data somehow ...
5
votes
3answers
123 views
21
votes
2answers
740 views

Kernel crash after idle in version 10.0

Bug introduced in 10.0.0 and fixed in 10.0.2 In version 10.0, when I leave the Mathematica section idle for some time (of order an hour), the kernel quit automatically. The syntax highlighting is ...
8
votes
1answer
103 views

FindMaximum failing on a trivial problem

I am trying to solve a trivial optimization problem with FindMaximum but for some reason it is not going. I reduced the problem down to the following non-working ...
10
votes
1answer
78 views

FullSimplify on TransformedDistribution

Bug introduced in 8.0.0 Could someone check that I haven't gone mad? I would like to take the maximum of two $[0, 2 \pi]$ independent uniform random variables. ...
0
votes
0answers
24 views

Access interactive web forms

I would like to communicate with interactive web forms, e.g., get the same HTML response as if I had clicked a "select" button and then clicked a "submit" button on a web page. This is for automated ...
1
vote
1answer
45 views

Display coordinates of pointing device in VectorPlot

I want to show the coordinates of the (mouse) pointing device as I move the pointing device over the VectorPlot without a (right or left) click. I have tried ToolTip and MousePosition but I cannot get ...

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