This tag is reserved for questions where the problem has been vetted by this community and the observed behavior is confirmed to be a bug. Please do not use this tag for new questions. Please use the standard bugs header instead of version tags in conjunction with this tag.

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2
votes
2answers
168 views

Getting messages Rest::norest and Divide::indet from ContourPlot3D

Note: The bug described in this post is found in Mathematica version 9 and seems to have been fixed in version 10. Ok I don't know if it's a bug or what, but here's what I found: If I use this ...
3
votes
0answers
98 views

Derivative of generating function (Example from documentation)

In the documentation for GeneratingFunction, the following example is given under Examples -> Properties & Relations -> Derivative: ...
5
votes
1answer
129 views

What does LinearModelFit depend on except for its arguments?

I thought this would be always true, but most likely it returns false. ...
6
votes
2answers
409 views

Don't understand why Mathematica is complaining about my Graph expression; how can I fix it?

The Tube in Arrow problem is fixed in version 10. Note that in version 10 Graph3D must be ...
2
votes
1answer
382 views

Display a labeled multigraph

Introduced in version 9, fixed in version 10. Thanks Szabolcs for providing this screenshot showing that the bug is fixed. Despite the integration of graphs and networks, multigraphs are ...
4
votes
1answer
117 views

DateList does not output the correct time, but Date does

I noticed a strange thing when trying the new astronomical data functions in Mathematica 10 on my Raspberry Pi. The Sunrise and ...
7
votes
1answer
612 views

Why won't my function plot?

If I define ...
12
votes
2answers
211 views

Bug with SparseArray selector in Pick

I have created a notebook with two cells. This is the content of the first: ...
5
votes
1answer
111 views

FlipView can't handle CurrentValue[“MouseOver”]. Kernel crash

Is this code crashing your Mathematica session? (it can so look out :P) ...
1
vote
0answers
74 views

Mathematica exit when calling plot. Bug?

I'm currently studing the behaviour of some integral for which I cant find an analytic solution. As this function depend on a vector on the unit sphere, I first defined it with 3 parameters before ...
2
votes
0answers
82 views

Front End - Bug in Edit->Find?

As a beginner I make notes in my notebooks on what I am learning as I go along, and I have also referenced the help files by pasting hyperlinks from them - this seems to break the Find function. Is ...
0
votes
0answers
89 views

My plot is cut off if a frametick is “0” but resized if a frametick is “0.” Why?

I have been trying to customize the frame ticks and frame label around a certain contour plot and am running into very strange behavior where the graphics will get cut off by ...
4
votes
1answer
194 views

Why does one of my Manipulate integer variables get turned into a real?

I'm developing code for manipulating graphs. Spot the difference in the 2 Manipulates below: ...
4
votes
1answer
84 views

How can I change VertexWeights in a Graph?

Bug introduced in 9.0 or earlier and fixed in version 10.0.0 I evaluate ...
1
vote
0answers
51 views

Addition of sparse array objects [duplicate]

Bug introduced in 9.0.0 and fixed in 10.0.0 I have been having some trouble with the addition of large (but very sparse) matrices using SparseArray. Here is the simplest example to illustrate the ...
9
votes
3answers
248 views

Problem with CurrentValue[“MouseOver”] when graphics are wrapped with Deploy

Bug reproduced in: V 9.0.1 - 10.1 Please take a look at following toy example: ...
10
votes
1answer
196 views

Sporadic bugs in multidimensional SparseArray objects

Udate This SparseArray[] bug is (apparently) fixed on version 10.0 ...
5
votes
1answer
99 views

RandomSample Bug?

I was using RandomSample with very skewed weights. I am asking for a random sample of 6 numbers 1 through 100 without replacement. In the screen shown, the weights for 1 through 6 are 100 000, with ...
3
votes
1answer
90 views

Bug with LinearProgramming on Integers?

With Mathematica 7: LinearProgramming[{1, 1}, {{0, 0}, {1, 1}}, {1, 1}, Automatic, Integers] gives wrong result {0,1}. But ...
4
votes
2answers
121 views

Inconsistent results for equivalent converging symbolic integrals

I have looked at previous questions and I'm aware that this seems to be a known bug: Mathematica giving inconsistent results for symbolic integrals done in different ways. The origins for the bugs ...
23
votes
1answer
340 views

Performance regression for Fold?

Bug introduced in 8.0 and persisting through 10.2.0 or later I noticed an over 10x performance drop on Mathematica v9.0.1 (as Oleksandr R. commented, also v8) compared with v7.01 for this code: ...
14
votes
1answer
263 views

Unwanted PlotMarkers appear at non-existent places

Bug introduced in 7.0 or earlier and persisting through 10.2.0 In this simple code ...
12
votes
2answers
242 views

Strange behavior when using Row with packed arrays

Bug fixed in 10.0.0 Today I lost a lot of time with a strange behavior and I narrowed it down to this small piece of code: ...
4
votes
1answer
175 views

Exported animated gif with matrices will not work?

I want to export a list of matrices as a gif so that they will appear one after another 2 seconds apart. I've tried the following but when I open it up it only does the first two matrices and I have ...
2
votes
2answers
202 views

BarChart3D does not print zeros and odd tick positions

Bug introduced in 9.0 and fixed in 9.0.1 I want to generate a simple 3D view of some frequencies for two variables. I have the counts in a 4x3 matrix, say. This is my bar chart code: ...
3
votes
1answer
260 views

Background in ItemStyle

I would expect the following to output the same grids ...
10
votes
1answer
276 views

Cancellation of common terms

Can someone explain why the term A in case 2 does not get canceled out when case 1 does? I use "9.0 for Microsoft Windows (64-bit) (January 25, 2013)" ...
0
votes
0answers
132 views

ParametricNDSolve: Parameter inside UnitStep leads to longer integration times

I have found one of the most annoying issues in ParametricNDSolve. When a parameters occurs inside UnitStep (and Piecewise and If) the integration takes much longer time. I illustrate this by an easy ...
8
votes
1answer
153 views

AndersonDarlingTest and DistributionFitTest Leaking Memory

I believe AndersonDarlingTest and probably all other tests are keeping a copy of data somewhere and not freeing it: ...
5
votes
1answer
100 views

Why do certain fractional values in TriangleWave not evaluate?

While answering another question I discovered that TriangleWave does not automatically evaluate when given certain fractional values, specifically fractions with a ...
4
votes
2answers
190 views

Reduce with Integer domain, but receive a rational solution

I want to find the integer values $k$ so that D[f[x], x] has integer solutions. I tried ...
3
votes
1answer
109 views

Cannot use CTRL + F and UN/COMMENT

I would like to ask a question with Mathematica 9.0.1. I find that both FIND: CTRL + F UN/COMMENT: ALT + / become unavailable. Pressing the shortkey or selecting from the menu could not activate ...
10
votes
1answer
315 views

How does LocationTest choose its “AutomaticTest”?

Is there a way of determining how LocationTest chooses its "AutomaticTest"? Sometimes it's clear from the ...
7
votes
3answers
140 views

Disable rounding up of PolarAxesOrigin

How to disable rounding up the radius which is used to calculate the origin of the polar axes with the option PolarAxesOrigin? Example: ...
2
votes
0answers
41 views

The value of PageWidth doesn't work for saving as HTML?

CellPrint@Cell["Test","Text",PageWidth->300,Background->Red] And I got this snippet of HTML code: ...
6
votes
0answers
160 views

Issue with FindCurvePath

I have a problem with the function FindCurvePath. In some cases it crashes the Mathematica 9 Kernel. Here an example, where it crashes the kernel: ...
21
votes
2answers
517 views

Graphics elements do not line up perfectly in exported PDFs

Graphics elements do not always line up perfectly in exported PDFs using "Save As..." method. Take, for example: ...
6
votes
0answers
193 views

Documentation for user-defined functions; undocumented documentation feature?

I stumbled on some strange behaviour when trying out the new function template and documentation features, now purportedly working in v 9.0.1. I defined a function ...
14
votes
4answers
254 views

Unexpected dots from Line

I have noticed cases where Line produces dots in a graphics object when I think it shouldn't. The first of these is: ...
4
votes
1answer
122 views

Is there really a bug in the following code, taken from the reference documentation for PetersenGraph?

Bug introduced in 9.0.0 and fixed in 10.0.0 PetersenGraph[5, 2, EdgeLabels -> {8 \[UndirectedEdge] 9 -> "hello"}] appears to evaluate perfectly, as ...
2
votes
1answer
110 views

Manual CellGrouping option causes crash at cell evaluation

Update: Try to reproduce this behaviour with CellGrouping set to manual. To do that: either evaluate ...
9
votes
2answers
96 views

Infix strange behaviour

Bug introduced in 7.0 and fixed in 10.0.0 Maybe this is a bug or maybe Infix acts differently than the other functions. The fact is that both: ...
5
votes
0answers
183 views

Strange Integrate behavior (a bug!)

The following two calculations should give the same result. After all, integration is a linear operation. I have pasted the code below in case you want to play with it. ...
16
votes
1answer
253 views

Bug in RepeatedNull?

RepeatedNull appears to be buggy (versions 8.0, and 9.0). Define f as follows: ...
11
votes
1answer
412 views

Inconsistent results of second derivative of inverse fourier transform

Bug introduced in 9.0 or earlier and persisting through 10.2.0 I am trying to get the Green's function of a toy diffusion equation $$\frac{\partial^2 u(x,t)}{\partial x^2} = ...
10
votes
2answers
150 views

Rasterize uses default stylesheet if ImageSize is specified

If I make a style definition which affects GraphicsBox, the style is used by Rasterize unless I specify an explicit ...
18
votes
1answer
316 views

Kernel inexplicably hangs if I define a pure function without suppressing output

Save any unsaved work before trying as it may crash Mathematica and other programs by filling up the memory! In v9.0.1.0 on OSX 10.8.5, if I start a new session and define two functions ...
4
votes
0answers
198 views

Syntax error for optional pattern, but only in debugger

This expression (explained here by Leonid) evaluates fine unless Evaluation->Debugger is enabled: h[x : (_Integer) : 1] := x Syntax::sntxf: "x:" cannot be ...
4
votes
1answer
248 views

Numerical errors/inaccuracies in ProductLog

Context In cosmology, a fairly accurate model to describe the gravitational potential, $\psi(r)$ of dark matter halos is given by $\psi( r)=\log(1+r)/r$. ...
20
votes
1answer
541 views

Incorrect result from Integrate

Bug introduced in 8.0 and fixed in 10.0 I attempted to calculate the following integral: ...