9
votes
2answers
195 views

Probable Bug in HighlightMesh with 2D Convex Hulls created via ConvexHullMesh

Bug introduced in 10.0 and fixed in 10.2 One nice way to view the new and exciting Mesh objects introduced in Version 10 is by utilizing the function ...
6
votes
1answer
127 views

Workarounds for a possible bug in the linearity of FourierTransform

This is somewhat similar to this question, except the problem I am encountering is to do with Fourier transforms of scalar multiples of functions and their derivatives. I wish to input ...
5
votes
2answers
180 views

Plot more points only in specific region of plot

I have the code shown at the bottom of this question which generates a 3D plot. There are locations where the two surfaces you see form cones and touch at infinitesimally small points. These points ...
0
votes
1answer
74 views

Restarting Mathematica causes an animation to fail to run [duplicate]

I've tried animating two different sets of 3D plots. Interestingly, one plot will always work, regardless of whether I restart Mathematica, yet another plot will only work in its current Mathematica ...
0
votes
1answer
103 views

ParallelMap returns incorrect results over Map

I've written a function to pull in the useful column of a large data file: ...
0
votes
1answer
71 views

Export date with specified format

My problem is that I want use PGFplot in $\LaTeX$ to draw my graphs, which x axis is a date. Therefore the output file has to have one column "UTC time" (YYYY-MM-DD hh:mm:ss) and the second one is the ...
4
votes
4answers
662 views

Why does Fourier give a shifted frequency?

I have a signal that I want to identify the frequencies in it, I used the Fourier function but I can't get the frequency correctly. Here is a simplified example: ...
4
votes
2answers
197 views

Change the legend labels' font when PlotLegends is Automatic

I am using the options PlotTheme -> "Scientific" and PlotLegends -> Placed[Automatic, Right] on a ...
1
vote
1answer
111 views

GIF file breaking Import

I'm working with a large number of historical image files and am playing around with extracting dominant colours, faces, etc. with Mathematica 10. Occasionally, however, I am running into files that ...
7
votes
1answer
196 views

Possible bug involving Dataset/Query and RightComposition

Bug introduced in 10.0.0 and fixed in 10.0.1 Short Version Why are the results of the following expressions different? ...
2
votes
0answers
131 views

Problems creating CDF via .NET DLL

I have read several posts at SE and googled a lot, but I still have difficulties to create a CDF via .NET. My first try was the Wolfram example MathKernelApp.exe ...
3
votes
1answer
167 views

Why is my compiled code slower?

I am trying to make a Mathematica program run faster. Here is part of the original version. It takes as input the integers X (of order 100), J (of order 10000), and n (of order 100), the real number p ...
1
vote
2answers
58 views

TimeConstrained for Table?

Let's say that I have a function f[i] that takes quite a while to evaluate (evaluation time is different for different i) and I'd like to have as many values of ...
3
votes
1answer
119 views

a mysterious error in multiple symbolical integration

I am trying to do the following integration: ...
1
vote
1answer
290 views

Performance of compiled functions (Project Euler No14)

I was playing around with the project euler problem 14. The solution I came up with is listed below as cf1. The solution works fine but I get the compiler warning: ...
4
votes
0answers
440 views

ErrorListLogPlot gives wrong error bars on log scale

From this and this post I learned how to use ErrorListLogPlot and its family to add error bars on top of a list of mean values. However, consider this simple ...
1
vote
0answers
184 views

Mathematica 10 hangs when modifying plots/themes from Suggestions bar

I am using Mathematica 10 on a computer running Windows 7 (64-bit) with all the most recent updates from Microsoft. My problem is as follows: I create a plot using the ...
4
votes
0answers
69 views

Does it help to do any preprocessing before `FindSequenceFunction`?

I am always amazed how smart FindSequenceFunction can be in discovering general term formula for a sequence of rational numbers. The documentation says it can work ...
1
vote
2answers
101 views

Evaluation of a large integral

I have a complicated large integral I want to evaluate (does not have a closed form, need an approximation), but Mathematica seems to keep "Running...". Is there any way to make Mathematica use more ...
0
votes
1answer
93 views

Plot groups based on unique tag

I have a .csv file that has 12 columns and 511 rows. data = Import["C:\\Users\\Documents\\data\\AllResults\\result1.csv"]; The first two columns are id tags. I ...
1
vote
0answers
222 views

Speeding Up Image Processing Functions

I am working with stacks of 1024x1024 timelapse microscopy images that I am performing a series of image processing functions on to help segment each image. These functions include ...
0
votes
0answers
96 views

How to make equidistant or split ListPoint [duplicate]

How to split the curve with more equidistant points? ...
16
votes
1answer
488 views

Speed up adding Poisson noise to an image

I'm simulating some images corrupted with Poisson noise, but I'm encountering a few problems with performance. According to the documentation on ImageEffect, one ...
2
votes
1answer
90 views

CreateDocument options needed to suppress the default notebook menu

What are the options needed in Mathematica 10 to suppress the menu on top of any notebook created with CreateDocument? For example, the Messages window as well as the windows generated by ...
26
votes
2answers
545 views

Speed of curated data calls in Version 10

Curated datasets underwent a significant overhaul in version 10, primarily in the way content is delivered in the form of Objects and Entities. Additionally, it appears that this change in content ...
0
votes
1answer
74 views

Change the size of a graphic inside a legend [duplicate]

I have this graph: ...
1
vote
1answer
94 views

How to know at which point of a calculation I am while using Table

If I use a code of this type: Table[foo[i], {i, 0, 10}] Mathematica won't output anything until it is done: is it possible to know at which point of the ...
10
votes
3answers
525 views

Mathematica 10 Graph issue

Bug introduced in 10.0.0 and fixed in 10.0.2 Please try to evaluate this code in Mathematica 10. ...
11
votes
0answers
217 views

Benefit of using Dataset to collect SQLSelect output

Considering a DatabaseExample included with Mathematica: ...
14
votes
3answers
973 views

Change the inner color of markers

I would like to have a marker with white as its inner color, to be able to make this kind of graph: If I use PlotMarkers -> Style["\[FilledSquare]", White], ...
0
votes
1answer
68 views

Can I use boolean parameters in LogitModelFit?

For example, to use 1 as True and 0 as False: ...
1
vote
0answers
185 views

Annoying window. How to remove it?

Bug introduced in 10.0 and persisting through 10.1.0 or later How do I remove this window from my Mathematica? Unchecking the Debugger menu item as described in How to close the (local) Debug ...
0
votes
1answer
584 views

Fit convoluted Gaussian and Lorentzian functions to a peak profile [duplicate]

I have a peak profile data like this: ...
3
votes
0answers
71 views

BoxWhiskerChart with logarithmic axes 2

I actually already found my answer on the question, however it is not working. see BoxWhiskerChart with logarithmic axes I want to create a boxwiskerchart with a logaritmic axes. But when I try ...
2
votes
1answer
586 views

Why is either Listable or HoldFirst not working?

Starting with a fresh kernel, I evaluate the following: ...
1
vote
4answers
179 views

Need an efficient way to do this list manipulation

Lets say i have two lists with me as given below: l1 = {4, 6, 8, 9, 10, 12}; l2 = {2, 3, 4, 5, 6, 7}; Now i have a function S2P(details irrelevant) which takes ...
15
votes
1answer
418 views

Automatically lining up two images that have some common elements

Over on genealogy.SE, I proposed a method of manipulating images to make "bleed through" less visible and the handwriting on the correct side of the page more legible. Here are the original images: ...
5
votes
0answers
117 views

Simple Choice-Dialog like the auto-completion popup

What I want is pretty simple, nevertheless, after half an hour I have only unsatisfying solutions here. Let me ask you who might work more often with Mathematica's GUI elements: Is there a way to ...
2
votes
2answers
233 views

Overwriting first line of large file

As mentioned, I wish to read the first line of a file, and if needed, overwrite it with a new string. The aim is to have a CSV with a list of possible elements. Example: ...
16
votes
2answers
1k views

PlotMarkers problem in ErrorListPlot, Mathematica 10

Bug introduced in 10.0.0, fixed in 10.1 I recently upgraded to Mathematica 10, very excited about the multiple undo function of course. However I very quickly noticed that if I specify a setting ...
1
vote
4answers
170 views

Minimum and maximum values under conditions

Let's create some sample data ...
0
votes
1answer
133 views

Is it possible to plot a second-order curve by its non-canonical equation?

I have this second-order polynom: $$ 6xy+8y^2-12x-26y+11=0 $$ And I need to reduce it to a canonical form of a second-order curve. I solved this, but is it possible to draw a plot of the original ...
3
votes
1answer
473 views

How do I solve for one variable in terms of other variables in Mathematica?

I'm fairly new to Mathematica, and I'm trying to solve a complicated equation with multiple variables. I've tried the following... ...
2
votes
1answer
103 views

Elements in `Reap` and `Sow`

Can someone help explain it to me: How does here e come out? Why b disappears? ...
1
vote
1answer
84 views

GUI->Text code conversion

I have to solve about 30 symbolic equations simultaneously. Mathematica is taking more than 24 hours to solve it on a 6 core system and now I have to run that on a cluster. In order to do so I need to ...
4
votes
1answer
109 views

How do I constrain variables to a user-defined domain in ArgMax?

I am trying to ArgMax a function over x, but x is only defined between ...
27
votes
4answers
756 views

What is the natural way of using Dataset to get a FittedModel?

The new Dataset in Mathematica 10 is a great addition to the language, potentially reducing the convenience gap with R. Given this, I would like to understand what the equivalent simple or natural ...
3
votes
1answer
227 views

Express a complex function $f(z)$ as $u(x,y)+iv(x,y)$

How can I write a complex function $f(z)$ in the form $u(x,y)+iv(x,y)$ using Mathematica? Re and Im do not work, because they do it for complex numbers, not functions. For example, if I try ...
3
votes
1answer
238 views

Integrating Mathematica in Blackboard

I teach Economics at University. I often use Mathematica to generate interactive diagrams with demand and supply curves. We also use Blackboard (blackboard.com) to manage our subjects, including ...
1
vote
1answer
85 views

Manipulate gives the output as a blank plot, but I'm not sure why [duplicate]

I'm using Mathematica 9 to try to manipulate a 3D plot. My code is: ...

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