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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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2
votes
1answer
19 views

DensityPlot: Error messages and strange bar legend

Bug introduced in 11.1.1 or earlier and persists through 12.0 I want to plot the following DensityPlot with axes given by Trr ...
4
votes
1answer
32 views

Plotting with sub and superscripts on the PlotLabels

Bug persists through 12.0. I'm trying to produce a plot with PlotLabels that include sub- and superscripts. However, I haven't been able to do it consistently. ...
7
votes
1answer
101 views

ColorFunction doesn't work with custom PlotMarkers

Bug introduced in 10.3.0 and persisting through 12.0 or later This works: ...
2
votes
1answer
65 views

JavaGraphics` and CreateDialog don't work with ListPlot in Mathematica 11.3/12

Bug introduced in 11.2 and persists through 12.0, case 4331202 I'm trying to see some plots based on data from a remote cluster as it runs various Mathematica 11.3/12 scripts, so I want to use the ...
7
votes
0answers
121 views

The most bizarre kernel crash ever. Kernel crash in Integrate under simple different setups. Unable to find cause

Reported to WRI. CASE:4330461 V 12 on windows 10 64 bit. Note: This problem do not show up in V 11.3. Only in V12. For the last 2 hrs, I've been trying to zoom into why V12 kernel crash when ...
5
votes
2answers
80 views

ChartBaseStyle in BarChart3D - possible bug

It looks like ChartBaseStyle in BarChart3D doesn't work in Grid mode when the matrix is larger than 9x9: ...
10
votes
1answer
109 views

Mathematica 12: Failure with URLRead

Bug introduced in 12.0 The following HTTP request fails to submit the body under version 12, but works in Mathematica 11: ...
4
votes
1answer
85 views

Why should the format of an integral affect the result

This has been reported to Wolfram and confirmed as a bug in Mathematica V12 This follows on from This question I get a different answer for the same integral input in different ways e.g. ...
2
votes
0answers
58 views

Which words are “protected” from the built-in spell checker?

Bug persisits through 12.0 [CASE:4331923] Some time ago Alan raised an interesting question about spell checking in Mathematica in a comment: <...> does Mma actually recognize Euclidian (vs ...
10
votes
1answer
112 views

Memory leak with FindMaximum/Minimum inside of Module

This is my first question here. I have to solve coupled first order ODE-s and find the maximum of a function which depends on the solution of the ODE. I have to do this calculation in large quantities,...
7
votes
1answer
78 views

`PlotLegends` not showing correct colour

I want to make a Plot with a styled line, as follows: ...
2
votes
0answers
91 views

Is Mathematica computing the conditional expectation correctly?

Given a simple case of say 2 independent trials each with probability of success 1/3. Consider a random variable that is gives the 3 times the total successes. We can define this random variable in ...
4
votes
2answers
64 views

GeoListPlot - Workaround for distinct coloring of categories - improvement?

GeoListPlot supports multiple lists of locations but once the number of lists exceeds 3, the coloring function for the categories starts to recycle the colors. For example, adding a list to the ...
7
votes
1answer
84 views

Module vs. DynamicModule wrt ProgressIndicator

Why does the following work for Module but not DynamicModule? ...
5
votes
1answer
56 views

Weirdness with Interpolation of data and InverseFunction

Bug introduced in 8 or earlier and persisting through 12.0 Something strange is happening with this list of data: ...
8
votes
3answers
429 views

Numerical minimum of a one-valued function

Bug introduced in 12.0 [CASE:4332003] My problem is that the Kernel cannot finish computation and eats up memory when a simple constraint like 0 <= x <= 2 is ...
4
votes
0answers
92 views

White triangles in ListContourPlot

I'm using ListContourPlot with InterpolationOrder -> 0 to plot some data and end up with some seemingly random white ...
9
votes
1answer
286 views

Why ArcTan[1, 0. I ] yields -1.5708+0. I?

Bug introduced in 5.2 or earlier and persisting through 12.0.0 Why ArcTan[1, 0. I ] yields -1.5708+0. I ? The result should ...
8
votes
0answers
54 views

Probable bug in EdgeAdd when adding edges to multigraphs

Bug introduced in 10.0 or earlier and persisting through 12.0 M10.0.2 and M10.3 return a wrong result without errors. M11.0 and M12.0 issue a flood of messages and sometimes crash. I am using ...
9
votes
2answers
129 views

FindMaximum returns a solution that violates the constraints

I am looking at the following optimization problem $$ \begin{align*} \max\ & 1000 r_1 + \frac{1}{2}r_2 + \frac{1}{3}r_3\\ \text{s.t. }& 1000^2 r_1 + \frac{1}{4}r_2 + \frac{1}{9}r_3 = \frac{1}{...
6
votes
1answer
77 views

DensityHistogram, “Log” plot with specific binning not working in Mathematica12

I have a problem plotting log with specific binning using the DensityHistogram. The following worked till Mathematica 11 but not anymore with Mathematica 12: ...
7
votes
2answers
91 views

Fullsimplify output depends on variable order

Bug introduced in 5.2 or earlier and persisting through 12.0 or later Mathematica 11.3.0.0 (used on a Mac) seems to give different results when using FullSimplify. ...
10
votes
3answers
167 views

Confirmed Bug: Why does Eliminate fail while Solve succeeds?

OP EDIT: Wolfram Technical Support got back to me and confirmed this is a bug. But the Answers below provided good workarounds. I have two polynomials respectively in {z,c} and in {r,z,c}. I'd like ...
11
votes
1answer
153 views

How to set FenceWidth in logarithmic plot?

Mathematica 12 introduced a built-in support for logarithmic plots with error bars. A plot with default styling looks as expected: ...
2
votes
0answers
70 views

FindClusters giving complete wrong groups from very simple array

Bug introduced in 8.0.4 or earlier and later fixed in 11.3 or earlier. I've been trying to use FindClusters function in Mathematica and it wasn't working well when ...
2
votes
1answer
84 views

Syntax highlighting indicates I'm unable to comment properly in Mathematica using (**)

I wanted to "comment" some code so the input inside (* *) is ignored. I tried this but the last term z[3] looks like it is not ...
8
votes
0answers
269 views

DEigenvalues and NDEigenvalues return different values

In the following example, DEigenvalues and NDEigenvalues return different results despite having identical arguments. Does anyone know why? (I use Mathematica 11.3) ...
2
votes
1answer
111 views

Does ListPlot Joined Dotted crash front end reproducibly for large number of points?

The problem The following code crashes Mathematica 12 for Windows 64 front-end reproducibly in my computer (Win7 Pro, i7-4770 3.4GHz 16Gb RAM). ...
10
votes
1answer
78 views

WVM hangs or crashes on empty array when compiled Listable

Bug introduced in 12.0 and persisting through 12.0 or later When I run the following code, the kernel hangs indefinitely: ...
6
votes
0answers
99 views

Problem with my user name

I'm trying to use the new website ("Wolfram Function Repository") and i get the following error: ...
7
votes
1answer
130 views

NetTrain Freezes Computer

I have a neural network I am trying to train: ...
3
votes
1answer
141 views

Mathematica cannot compile complex-valued interpolated PDE coefficients? (NDSolve, Finite Elements)

Bug introduced in 11.1 or earlier, fixed in 11.3 or earlier. The following PDE pde = I Cos[x y] D[u[x, y], x] + Laplacian[u[x, y], {x, y}] == 0; Is happily ...
22
votes
1answer
219 views

Possible Memory Leak Issues in NestWhile

Consider the following code snippet: NestWhile[{#[[1]]+1,Pause@.001;ConstantArray[0,{100, 100}]}&, {1}, (#[[1]] <= 10000) &, 2] In theory, when ...
4
votes
1answer
94 views

Triggering WhenEvent as a result of WhenEvent

I'm attempting to solve a dead-simple differential equation with events: ...
4
votes
0answers
67 views

Why does Shortest not work inside SequencePosition?

Why does Shortest not work in a SequencePosition call? The following two commands return the same answer: ...
5
votes
1answer
70 views

Why is a Boolean output not given as True/False by SystemModelSimulate?

Bug introduced in 11.3 and persisting through 12.0 A support case with the identification [CASE:4268618] was created. I am a bit surprised that I am not getting a boolean output for the following ...
10
votes
0answers
221 views

Mathematica 12 crashes upon taking the Log of a double series

I recently upgraded from Mathematica 10.4 to 12.0. Unfortunately, I am now experiencing crashes with code that was stable in 10.4. The code involves extensive manipulation of the Series function ...
3
votes
1answer
120 views

Vector ParametricNDSolve and FindRoot interaction

This question came out of this question. I have a set of differential equations, written in vector form. I'm only interested in the value of these at the endpoint, and so I use ...
1
vote
0answers
64 views

Import JPG picture missing XMP / EXIF metadata tags

I used Google Picasa to tag a face in a JPG photo, which is stored as an XMP metadata tag within the photo itself: Here is a link to the photo. If that URL has expired, you can download the pic as a ...
2
votes
1answer
69 views

Series keeps unwanted terms

This expression doesn't simplify properly. I have this series. In[33]:= temp2[[8]] Out[33]= SeriesData[s, 0, { t[2] t[4], 0, Rational[3, 2] x[1] x[4]}, 0, 3, 1] ...
5
votes
1answer
48 views

RandomPoint returns compiler errors on RegionIntersection of two Meshs?

Consider the intersection of two ConvexHullMesh's, m1 and m2. ...
2
votes
1answer
82 views

Unstable symbolic expectation of gaussian distribution on absolute values?

Context I use mathematica 11.3 and 12. 11.3.0 for Mac OS X x86 (64-bit) (March 7, 2018) 12.0.0 for Mac OS X x86 (64-bit) (April 7, 2019) I am interested in evaluating the following integral ...
4
votes
1answer
211 views

Inconsistent simple simulation outcomes?

Bug introduced in 10.4 or earlier and persisting through 12.0.0 or later Two simple kinds of simulating the one-sided exact Fisher-test of obtaining at least 86 successes in 129 draws in a ...
36
votes
2answers
887 views

Eigenvalues broken in Version 12.0

Bug introduced in 12.0. The following code calculates the eigenvalues of a certain complex matrix, which come in pairs of opposite complex numbers. Therefore one can check whether the sum of all ...
1
vote
1answer
45 views

Difficulty Displaying an Untransformed and Transformed Graphics3D Object with Show

I would like to illustrate a sequence of translations and rotations relative to the initial coordinate system simultaneously with multiple views using Manipulate. I discovered that there are some ...
0
votes
0answers
55 views

How to handle the instability of the integral evaluation in the following case?

I want to integrate a function \[Kappa][gh, ms, ts, th, ph] (for all definitions, see a code below) with the distribution ...
20
votes
2answers
2k views

Wrong answer from DSolve when solving a differential equation

Bug introduced in 12.0.0 I was trying to solve the following differential equation: $$\frac{dy}{dx}=x^2+y^2-1 \quad \text{and} \quad y(0)=1$$ and I used the code below: ...
10
votes
2answers
199 views

How to explain the behaviour of TreeForm? [duplicate]

Just try this: g=1;a=1;TreeForm[Hold[g[a]]] The weird thing in the outcome is that the node of g displays 1 ,and a is still a. I do not know how to explain ...
2
votes
1answer
53 views

How do I make InverseBetaRegularized function behave the same in Mathematica 11.3 compared to 11.2?

In Mathematica 11.3: InverseBetaRegularized[0.001, 4501, 500] Never finishes calculating. ...
2
votes
1answer
82 views

Flickering dashed circle in rotated Manipulate

Bug introduced in 12.0 or earlier and persisting through 12.0.0 or later I'm drawing some objects (lines, circles etc) in a Manipulate. I am rotating the ...