Questions tagged [bugs]

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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11
votes
1answer
309 views

Why don't products of Dirac deltas integrate correctly?

Bug introduced in 10.0.0 and fixed in 10.0.1 The integral $\int \int \ \delta(x) \delta(y) \ dx dy=1$ evaluates to 0 in Mathematica ...
7
votes
3answers
862 views

How do I adjust the thickness of all the FrameTicks? [duplicate]

I am very sorry if this is trivial, but I can not for the life of me adjust the thickness of all tick marks in Plots. Depending on the data to plot, either the top, bottom, top and bottom, or top and ...
7
votes
2answers
163 views

Strange Error on Fresh Kernel (10.2)

Bug introduced in 10.1 I wrote a helper function to format real numbers in a certain format for writing .dbf files here. It relies on a new function to 10.1 - ...
6
votes
1answer
269 views

Entering null characters in a string

This question is about parsing files that contain nulls (character code zero) as field separators. Intending to attempt to answer this I began by trying to enter a string containing a null, e.g. by ...
6
votes
3answers
945 views

How to use PlotRange -> All with ListLogLinearPlot?

Bug introduced in 8.0 and fixed in 10.0.0 I would like to generate a ListLogLinearPlot that automatically shows all the data points. However the option ...
6
votes
1answer
169 views

Kernel crash with RandomInteger

Bug introduced in 11.2 I am using RandomInteger to create sorted test data in the following way: lists = Sort /@ RandomInteger[10000, {10, 200000}]; With ...
3
votes
0answers
509 views

Annoying window. How to remove it?

Bug introduced in 10.0 and persisting through 11.0 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 window/...
35
votes
1answer
548 views

Why is multidimensional Reverse slow?

Bug introduced in 6.0 or earlier and persisting through 11.1.1 or later I have found that multidimensional Reverse is ~10 times slower than exact ...
25
votes
2answers
910 views

Template completion

In version 8, if one evaluates test::usage="test[x,y]"; then types test, then shift-cmd-k (or shift-ctrl-k), a template ...
15
votes
3answers
1k views

Manipulate slider unresponsive after suspend in Linux

Bug fixed in Mathematica 11 I've tested Linux Mathematica versions 7-9 on various Linux distributions, with identical problem: after suspend/resume cycle my Manipulate controls (i.e. sliders&...
24
votes
2answers
1k 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 ...
15
votes
2answers
1k views

Interpolation on a regular square grid spanning a triangular domain

Bug introduced in 10.0 and fixed in 10.1 Context I am trying to identify contours of a function which is sampled on a cartesian grid within an irregular (triangular) region. Here is the data <...
33
votes
1answer
1k views

Terrifying performance decrease for contour/density plots in v10.1 -> 10.3

Bug introduced in 10.3 and fixed in 10.3.1 I setup for download a test dataset at http://www.inrim.it/~magni/cm.dat.gz (a set of 64800 triplets x,y,z). The behavior can be reproduced with the ...
19
votes
2answers
1k views

Exporting a dashed plot with a color gradient to a vector graphics format ruins the dashing

When exporting a dashed plot with a color gradient to a vector graphics format such as EPS or PDF, the dashing is partly ruined. For example, this command: ...
17
votes
1answer
459 views

GeoGraphics: problem with GeoPosition in shifted projections

Bug introduced in 10.0.0 and fixed in 11.0.0 A remark about the answer: My work around is only nice for simple cases with points. More general should include proper polygons splitting on ...
14
votes
2answers
485 views

Wolfram Cloud deployment obstacles

What are official restrictions about FormFunctions/general deployment contents? There are problems with many things which sometimes I have workarounds for but I ...
28
votes
3answers
1k views

Symbolic integration error

fixed in 10.1 (windows) I'm running Mathematica 10.0.0 and encountered a disturbing error in the symbolic integration of a rather simple function ...
24
votes
1answer
565 views

A documented syntax of FileNames doesn't work?

Documentation discrepancy present in 10.3 and fixed in 10.4.1 According to the documentation for FileNames under Details: However when I attempt to use this ...
18
votes
1answer
248 views

Unexpected pattern matching behaviour: PatternSequence vs. Optional

Bug fixed in 10.1 Consider the following pattern-matching expressions: ...
14
votes
1answer
231 views

IsomorphicGraphQ fails to recognize that two empty graphs are identical

Bug introduced in 9.0.1 or earlier and fixed in 11.0.1 Consider the following two graphs: ...
14
votes
2answers
524 views

How do I prevent Mathematica from reformatting the expressions that I copy as LaTeX?

When I choose something that looks like $$ W_1(1)=\rho ^{5} \omega _1 \rho ^{-5}\\ W_2(2)=\rho ^{23} \omega _2 \rho ^{-23}\\ W_3(3)=\rho ^{10} \omega _3 \rho ^{-10}\\ W_4(4)=\rho ^{9} \omega _4 \rho ^...
13
votes
1answer
376 views

10.0.2 mapping Association to Dataset warning

Bug introduced in 10.0.2 and fixed in 10.0.3 In 10.0.2 ExampleData[{"Dataset", "Titanic"}][All, <| "gender" -> #sex|> &] Outputs the expected ...
22
votes
2answers
445 views

Plotting a defined function gives different results from plotting the function directly

Consider the following piece of code: function[t_]:=Exp[-9 t^2]; LogLogPlot[{function[t],Exp[-9 t^2]},{t,.01,100}] I expect the two plots to exactly overlap each ...
19
votes
5answers
2k views

How can I change the thickness of tick marks in BarLegend?

Bug introduced in 10.1 or earlier and persisting through 11.0.1 or later This answer explains how to change various undocumented options for BarLegend with ...
16
votes
2answers
690 views

Can't get Append to append a record (association) to a dataset

Bug introduced in 10.0.0 and fixed in 10.1 or earlier The Documentation Center item, Computation with Structured Datasets, implies that Append has been extended in ...
12
votes
1answer
379 views

StringMatchQ and Alternatives throws message in init.m

Bug fixed in 11.2.0 The report of this issue, which itself relates to code of my answer here, exposed a behavior I cannot explain. If I use StringMatchQ in ...
12
votes
2answers
562 views

Grid - problem with ItemSize being ignored

Bug introduced in 7.0 or earlier and persisting through 11.0 I have run into another problem with Grid today. An explicitly specified ...
8
votes
1answer
195 views

Authentication dialog for URLDownload / URLSave

Bug introduced in 11.0 and persists through 11.3 The original problem is was fixed in V11.2 but since then it returns File[path/to/file/that/does/not/exits] ...
19
votes
3answers
1k views

Kelvin per Kelvin Difference

Bug introduced in 9 and partially persists through 10.2 or later The specific bug described in the original question is fixed ("Kelvin" is correctly recognized as <...
19
votes
2answers
366 views

Dataset seems to break Information

Bug introduced in 10.0 and fixed in 11.0.0 Dataset is new in 10.0 Note: In order to reproduce the bug, the symbol Dataset may ...
17
votes
1answer
444 views

Adding three integer sparse matrices is very slow. Adding only two is fast

Bug introduced in 9.0.0 and fixed in 10.0.0 Adding more than two sparse matrices in one step in Mathematica 9 is very slow (in fact I couldn't even wait for it to finish). Here's an example. Let's ...
15
votes
2answers
395 views

AssociationMap loses definition

Bug introduced in 10.0.0 and fixed in 10.1.0. I'm facing a strange behavior of AssociationMap. With a fresh Kernel session: ...
14
votes
0answers
327 views

InputAliases and SelectionPlaceholder issue in V10 [duplicate]

Bug introduced in V10.0.0 or earlier and persisting through V11.1 Let's create an example and do the test: ...
13
votes
1answer
454 views

How to use Get on a folder

Documentation flaw introduced before 9.0 and persisting through V11.0.0 In the documentation for Get it says: If the file found by ...
12
votes
4answers
710 views

Removing edge weights from a Graph

Bug introduced in 8.0 and persisting through 12.0 How can I remove EdgeWeights from a Graph without affecting any other ...
11
votes
2answers
548 views

Sqrt disappeared when exporting plot to PDF in version 10

Bug introduced in 10.0.1 or 10.0.2 and fixed in 10.1.0 In version 10, if we plot with Sqrt in y-axis, and export to PDF, the square root disappears in the PDF file....
10
votes
1answer
483 views

ArrayPlot with a user-defined color function is misbehaving

Bug introduced in 10.0 and fixed in 11.0 I am using ArrayPlot to show some arrays with values from 0 to 1. I want 0 to be black and 1 to be white, so I am using: <...
10
votes
3answers
195 views

The very bottom of CellMargins is missing

Bug introduced in 8 or earlier and persists through 12.0 Edit 16. IV 2016 I've received an answer from WRI Support: [...] It does appear that CellMargins is not ...
8
votes
1answer
301 views

Export bug in combination with ParallelTable?

I am programming with Mathematica 10.3.1.0 on Windows 10 Professional 64 Bit and have an i7-4940-MX 3,1 GHz processor (4 cores). When I use in the example code below ...
7
votes
4answers
765 views

error with NIntegrate and RegionPlot

Bug introduced in 10.2 or earlier and persisting through 11.0.1 or later Here's a simplified example of what I'm trying to do: ...
26
votes
1answer
1k views

Excessive memory use by Mathematica kernel in 10.0.2 after executing simple commands

Bug introduced in 10.0 and fixed in 10.1 Warning: the code below may hang your system if you have the Suggestions Bar enabled in Mathematica < 10.1. When issuing the following simple statements ...
16
votes
1answer
548 views

Why do Arrowheads interfere with ImagePadding?

Bug introduced in 8.0 or earlier and persisting through 11.0.1 or later In a recent posting, Belisarius solved a problem related to the display of arrows on the x and y axes by setting ...
12
votes
5answers
558 views

TableAlignments -> Left not working

Bug introduced in 7.0 or earlier and persisting through 11.0.1 or later For a very simple dataset TableAlignments->Left does not work: ...
12
votes
1answer
329 views

Bizarre behavior of With, Compile and Break

I'm guessing this is almost certainly a bug in Compile (because they're fairly common), but it's pretty weird and I spent about an hour tracking down the issue and ...
11
votes
1answer
607 views

WSTP broken by upgrade to 10.0.1?

Bug introduced v10.0.1 and fixed in 10.0.2 Everything was working fine with WSTP (the successor to MathLink) in 10.0.0. But I upgraded to 10.0.1 today and now I can't compile either my programs (I've ...
11
votes
1answer
151 views

Why is PaneSelector caching nested Dynamics and how to switch it off?

Bug introduced in V10.4 or earlier and persisting through V11.3 CASE:3875733, confirmed It seems that Dynamic content is somehow cached by ...
10
votes
1answer
146 views

Iterator variable not blocked in ParametricPlot

Bug introduced in 10.0 and fixed in 10.3 It appears that perhaps the iterator variable r is not Block-ed in the ...
10
votes
2answers
641 views

Why does ListPlot ignore some global options?

Bug introduced in 7.0.1 or earlier and fixed in 8.0.1' Why does the following plot no use the global PlotMarkers option? ...
10
votes
1answer
228 views

Non-rectilinear integration of InterpolatingFunction

Bug introduced in 7 or earlier and persisting through 11.0.1 or later [CASE:3487737] I have a 2-d array that I would like to resample into a different coordinate system and integrate along one of ...
9
votes
1answer
224 views

Cannot reproduce TransformedRegion example shown in documentation

Bug introduced in 10.0.2 or earlier and fixed in 11.1.0 Note: TransformedRegion was introduced in 10.0.0. Reproducing an example from Mathematica's help, I obtain ...