# All Questions

9 views

### Visualising a 1-(50,15,15) design

The problem I have is the visualisation of a 1-(50,15,15) design. That is a set of 50 points and 50 blocks (lines), so that each point is on 15 lines, and each line contains 15 points. My attempts ...
39 views

### Combining lists to create points in a ListLinePlot[] graph

I would like to make a ListLinePlot[] using these lists: ...
25 views

### My evaluation is taking a lot of time

I was evaluating the roots of a transcendental equation, when I noticed that the math never ends (It stays in running state). It follows the code that I was using: ...
25 views

### Creating a function that uses another function as an argument

I'm new to Mathematica and found a couple questions that were the same as mine but they did not help as much. I'm trying to create a function that evaluates another function and uses that value. ...
18 views

### LUDecomposition does not give the expected results [duplicate]

Check this example: ...
20 views

### Remove color artifacts in overlay of several Graphics objects?

I am trying to create an animation with a graphic of an arm that can bend at the elbow. For this purpose I created the following two images: hand1 and hand2. I load the images with ...
46 views

### Removing an ordered pair from a list of ordered pairs according to a certain criterion

I have a list of ordered pairs produced by evaluating {IsotopeData["Thorium226", "ExcitedStateEnergies"], IsotopeData["Thorium226", "ExcitedStateSpins"]} I'm ...
57 views

### How to specify that Quiet should silence foo::shdw messages for ANY symbol foo?

I have some package code that does rather complex multi-context evaluation, and I know it's going to throw warnings about shadowed symbols. The shadowing isn't actually a problem. For the end-user's ...
29 views

### Plot data with x and y ErrorBars from file [duplicate]

If I have a set of data like this one saved in a dat file ...
36 views

### Fill the gap between two consecutive sphere with different colors [duplicate]

I wanted to shows the radial density (thickness 1) with different color such that dark color shows for lower radius and light color for higher radius. The gap between concentric sphere should be ...
28 views

I want to use mu own package. This is the procedure I take: 1) In Mathematica notebook I put the following code taken from code ...
71 views

### How to avoid creating negative values when using Interpolation?

I'm having some problems with Interpolation. I'm trying to interpolating some measurements data into mathematica. But using Interpolation will create some negative data, which is actually not possible ...
28 views

### Nested optimization (in a dynamic game)

I have a dynamic game in two stages with two players. The solution of this game requires first to find the Nash equilibrium in stage 1 with correct expectations of the decisions taken at stage 2. At ...
51 views

### Color degrades when using Copy As Bitmap

I have discovered a problem that affects my use of Mathematica. When I use the menu command Edit > Copy As > Bitmap the colors in the copy are subtly degraded. To make this more apparent I copied ...
33 views

### Points on discriminant variety?

I am trying to find a way in Mathematica to compute points on discriminant variety for modest size systems, but I couldn't find one. The system is something like: ...
39 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 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. ...
41 views

### Merging two associations

I have two associations: ...
36 views

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

I want to plot a 3D histogram of a matrix and I am using this line: DiscretePlot3D[lmat[[x, y]], {x, 1, 3}, {y, 1, 3}, ExtentSize -> Full] where ...
315 views

### Why is an Identity function needed?

Today I came across the function Identity[x] in Mathematica (documentation). The example given in the documentation uses it in ...
70 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: $$\sum _{n\ge1}^\Re (24 n + 12 n^2)$$
63 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 ...
37 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: ...
43 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 ...
116 views

### generating integer partitions

Mathematica can generate integer partitions of an integer $N$. For example, IntegerPartitions[4] quickly gives ...
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 ...
61 views

### solving a non trivial equation system

I try to solve a 4 equations, 4 unknowns system. Here is my code ...
59 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 ...
37 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 ...
28 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: ...
304 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 ...
146 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 ...
69 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 ...
26 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 ...
45 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 ...
83 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 ...
131 views

### Make NonlinearModelFit return continuous function

Suppose I want to fit the dataset ...
47 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 ...
76 views

### Reduction of an Inequality in $\mathbb{C}$

Reduce[ Abs[-((4 p)/(-1 + Sqrt[1 + 4 p + 4 q])^2)] + Abs[-((4 q)/(-1 + Sqrt[1 + 4 p + 4 q])^2)] < 1 , Abs[p]] It is taking lot of time. It is running. Can ...
57 views

### Creating a certain image (3D shadows, highlighted intersections)

I would like to learn how to code within Mathematica the following picture: I tried using ...
47 views

I evaluated ...
52 views

### Can Predict/Classify be parallelized?

Being able to parallelize Predict /Classify would be useful on multiple fronts: Performance/Scale Streaming Pedagogical ...
90 views

### Convert DateObject into TimeObject

How to elegantly convert from DateObject to TimeObject? The purpose is to extract time from the DateObject and manipulate only ...
87 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 ...
45 views

### Large lists to manipulate later in chunks [on hold]

If I try to evaluate either one of the following expressions: Table[n, {10^8, 10^9] Range[10^8, 10^9] I get ...
42 views

### Solving recursions

This question is tied to my previous question. I have a few recursion formulas, and I keep getting Recursion depth of 1024 exceeded. error. I need to get the ...
29 views

### Calculate Max-Min value and corresponding parameters

I have two functions funA and funB which are also functions a,b,x,and ...
289 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, ...