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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5
votes
0answers
48 views

VertexDelete not working on graph with VertexWeight

Bug introduced in 10.0 and persisting through 10.2.0 Good afternoon, I have observed an "unexpected behaviour" with VertexDelete and a graph with vertex weights. This is a minimal working example: ...
6
votes
2answers
177 views

Transpose can't handle fractions

Bug introduced in 10.0 and fixed in 10.2.0 Note: Dataset and Association are new in 10.0 Related to this question, why can't ...
1
vote
1answer
80 views

Switching to CloudObject`Private`

I shut Mathematica done, then restart it. The image shows all that I do. I have done nothing else. Can anyone explain what is happening to me? The complete code is: ...
18
votes
4answers
821 views

A bug in Integrate

Integrate[(1 + 16 Tan[2 x - y]^2)/(1 + 4 Tan[2 x - y]^2), {x, 0, 2 π}] Mathematica (wrong) output is (tested under versions 8 and 10.0, took ~ 1 minute of CPU ...
5
votes
1answer
173 views

Wrong Limit in Mathematica 10.0.0

Bug introduced in 9.0.0 and fixed in 10.0.1 Limit[(Log[(3+Sqrt[5])/2]/(2*Log[(1+Sqrt[5])/2]))^(-1-2*n), n -> Infinity] Mathematica (wrong) output: ...
7
votes
1answer
152 views

Wrong Limit with LaguerreL

Limit[(n! LaguerreL[n,-1]/(n^(n+1/4)/Sqrt[2]/E^(n-2 Sqrt[n]+1/2))-1) Sqrt[n], n->∞] Mathematica (wrong) output ...
8
votes
1answer
133 views

LogisticSigmoid residue bug?

Bug introduced in 10.0 and fixed in 10.2.0 On version 10.0 for arm: Residue[LogisticSigmoid[z],{z,I Pi}] gives 0 not 1. ...
11
votes
1answer
84 views

Question about TransitiveReductionGraph

Bug introduced in 10.0 and persisting through 10.2.0. Note: TransitiveReductionGraph is new in 10.0. In Mathematica 10.0 and 10.1, according to the ...
4
votes
1answer
98 views

Kernel crash when using NIntegrate with Throw/Catch

Bug fixed in 10.2.0 My code is: ...
5
votes
1answer
64 views

Integrate gives Simplify::infd “simplified to Indeterminate” message

Using version 10.1 on windows 7 Integrate gives this Simplify::infd Kernel message. What causes it, is this a bug? ...
16
votes
1answer
263 views

In 10.1.0 BenchmarkPlot doesn't work?

In Mathematica 10.1.0 BenchmarkPlot from the GeneralUtilities package doesn't work; copying Taliesin Beynon's initial use of the function on this site: ...
2
votes
2answers
125 views

Bug: Export sometimes adds unwanted background to PDF files

Update: WRI confirmed that this is a known issue with Export on 2015-05-14. I am trying to export the outputs of some Plot expressions as PDF files for inclusion ...
7
votes
2answers
271 views

What's wrong with NIntegrate with “MonteCarlo” Method?

Bug fixed in version 10.2.0 My code is: ...
5
votes
1answer
149 views

Why does Nintegrate keep unevaluated?

It's no surprise that the "MonteCarlo" Method works well: ...
3
votes
1answer
156 views

Initializing Manipulator value within DialogInput (version 10.1 only)

Bug introduced in 10.1.0 and fixed in 10.2.0 I've confirmed, with WRI, that an issue was introduced in version 10.1 with regard to initializing Manipulator Dynamic ...
0
votes
0answers
53 views

problem of re-open the .nb file of Mathematica

This probably is a newbie question, but I cannot figure out it. I have a Mathematica 10. Every time when I re-open a .nb file, either by double clicking or by using the software interface, all cells ...
25
votes
1answer
271 views

Does Mathematica store hidden information for matrix objects?

Bug introduced in 10.0 and fixed in 10.2.0 I found a case where calling one built-in function (HermitianMatrixQ) for a given matrix changes the behavior of ...
10
votes
1answer
132 views

FullSimplify wrongly reduces expression to zero

I get the following output with a fresh Mathematica (ver 10.0.2.0 on Mac) session ...
2
votes
0answers
81 views

Arrowhead becomes unattached to line in a Graphics3D Manipulate

I'm trying to Manipulate a Graphics3D figure, and am seeing some errors. If I execute the following code, and move the slider, ...
3
votes
0answers
51 views

Using indexed array elements as integration dummy variables with EvaluationMonitor. Bug?

As part of a routine that must cope with integration of varying numbers of dimensions, I would like to use indexed variable names (e.g., x[0], x[1],...) as dummy integration variables. However, it ...
0
votes
0answers
32 views

Possible bug of Exporting as HTMLFragment at Linux

This is the result of Mathematica 10.0.2 of Linux Version. There are two style inside one tag, and this fragment cannot be Imported as XML by Mathematica. This is the result of Mathematica 10.1 of ...
5
votes
0answers
104 views

Trouble understanding TrackedSymbols

While developing a relatively complex demonstration for Manipulate I encountered the problem that my output was unintentionally self-updating in an endless loop. ...
5
votes
2answers
217 views
14
votes
3answers
272 views

Can't inject EncryptedObject

Bug status Introduced with Encrypt in 10.0 Still there in 10.2 Here are minimal examples: ...
1
vote
1answer
115 views

Benchmarking in V10.1.0 not showing the correct verision of Mathematica?

This was done in V10.1.0, but it's showing that as if it was done in V10.0.0? Computer Specs:(for those who are interested) ...
3
votes
2answers
142 views

Strange results from evaluating a simple integral

I am trying to do a seemingly simple integral in Mathematica 10 and am getting strange results: ...
20
votes
1answer
786 views

Mathematica 10.1.0.0 (OS X) high CPU usage even for empty notebook

Bug fixed in 10.1.0 (see answer for details) Since update to 10.1.0.0 Mathematica has a high CPU usage even when no evaluation is running (even for empty notebook opened). I am running OS X ...
4
votes
0answers
51 views

Mathematica doesn't italicise a function's argument in the function's body if it appears in the denominator and the denominator is edited. A bug?

Bug introduced in 10.0.0 and persisting through 10.1.0 or later I'm using Mathematica 10.0.2 for Mac. On a fresh kernel, I type this: a is not italicised ...
4
votes
0answers
96 views

Memory leak when looping over FindInstance in version 10.0.0

When I run the following (simplified) code with FindInstance, my MemoryInUse is constantly increasing: ...
2
votes
1answer
54 views

upper limit with `PlotStyle` in `GeoListPlot` in v10.1

Confirmed bug in v10.1 Let's start with the code below: ...
5
votes
2answers
203 views

Kernel quits without error in NDSolveValue

I am using the latest 10.1. The following single line command makes the kernel quit without error message (just a beep): ...
7
votes
0answers
95 views

MoonPosition and TimeZone support

With this question, I noticed some some weird results of MoonPosition. Consider the following code: ...
5
votes
1answer
58 views

DateObject for current date skips a day when crossing the date line with TimeZone

The DateObject was introduced in version 10 of Mathematica. One can call it to fetch the current local date and time: ...
5
votes
2answers
105 views

Dataset Query using Composition fails but RightComposition works - why?

V10.1 on Win764 Enterprise. In this (CORRECTED) example the two Queries may be compounded into one using RightComposition sucessfully... ...
11
votes
1answer
287 views

Empty Blank regression in v10.1

Bug introduced in 10.1 and fixed in 10.2.0 In v10.1.0.0 on Linux, when Blank[] is used in Alternatives with pattern that can ...
8
votes
2answers
140 views

SetOptions for CoordinatesToolOptions for DateListPlot?

Bug introduced in 10.0 and persisting through 10.2.0 or later DateListPlot does not respect my Options setting for ...
4
votes
0answers
47 views

Wrong autogenerated package from notebook containing #key and Part as subscript

Bug introduced in 10.0.0 and persisting through 10.1.0 or later Mathematica v10.1.0, under Windows 8.1 x64 Mathematica v10.0.2, under Windows 1) Define a function in an initialization cell: ...
1
vote
1answer
55 views

`ResamplingMethod -> None` in `TimeSeries` does NOT take any effect in v10.1

Possible bug in v10.1 ResamplingMethod -> None in TimeSeries does NOT take any effect in v10.1. Try: ...
8
votes
1answer
232 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 ...
1
vote
1answer
76 views

Bug with DateListPlot with ToolTip with NumberForm?

Is anyone able to confirm if this is a bug in version 10.1 on Windows 7 Pro? I am attempting to produce a DateListPlot with ...
13
votes
1answer
175 views

MinMax function (Mathematica v10.1.0) conflicts with NDSolve`FEM`MinMax?

Bug introduced in 10.1.0 and fixed in 10.2.0 Some problem in v10.1.0 (Windows 8.1 x64) and the new MinMax... ...
7
votes
1answer
83 views

Iterator variable not blocked in ParametricPlot

Introduced in 10.0, persists through 10.1 It appears that perhaps the iterator variable r is not Block-ed in the ...
3
votes
1answer
95 views

Strange Integrate messages / $RecursionLimit being ignored

Bug introduced in 10.1.0 and fixed in 10.2.0 The following behavior was observed in Mathematica 10.1 (Windows 64 bit) When attempting to evaluate the following integral, Mathematica outputs ...
6
votes
1answer
117 views

Detecting nearly simultaneous WhenEvents in NDSolve

I am trying to solve a system of (many) coupled nonlinear ODEs. I need to decouple some of the equations (i.e. set the time derivatives of some of the dependent variables to zero) at various points in ...
13
votes
0answers
186 views

RegionPlot returning a number

Introduced in 10.0, persists in 10.1 and 10.2. I had updated my mathematica to version 10 few days ago. And I had been shocked by the following fact: ...
27
votes
1answer
386 views

many indefinite integrals do not evaluate in 10.1, looking for the cause

Many integrals no longer evaluate in V 10.1 when they did in 10.0.2 Here are some 23 integrals as an example, that all produced results in V 10.0.2, but now all returns unevaluated! I am hoping ...
9
votes
1answer
96 views

FullSimplify Produces Result that Includes Hold

Bug fixed in 10.2.0 In the course of developing a solution to Question 79183, I solved the equation ...
11
votes
1answer
149 views

ListConvolve Memory Hemorrhage

Bug introduced in 10.0.0 and fixed in 10.2.0. I wrote a routine that convolves an impulse response array with a test array and checks for the RMS difference between that convolution and a data ...
3
votes
1answer
128 views

Memory leak in MemberQ

Bug introduced in 10.0.0 and fixed in 10.0.2 Consider the following code. ...
5
votes
0answers
126 views

Behavior of TimelinePlot with multiple datasets of associations

The following TimelinePlot behaves as I would expect: ...