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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.

2 votes
Accepted

A possible bug with regard to DateObjects in Version 10?

As kindly posted above by Square1 the error indeed is related to the Suggestion Bar Bug and will not appear if the Suggestion Bar is disabled in the preferences. What I still find a slight nuisance i …
gwr's user avatar
  • 13.6k
5 votes
1 answer
183 views

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

Bug introduced in 11.3 and fixed in 12.1 I am a bit surprised that I am not getting a boolean output for the following simple Modelica model: model = ImportString[ "block Or input Bool …
gwr's user avatar
  • 13.6k
1 vote
Accepted

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

As Malte Lenz and now officially Wolfram Support have confirmed, this is a bug. Note, that not only will Boolean outputs be given numerically by SystemModelSimulate, but Boolean inputs also have to …
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  • 13.6k
10 votes
1 answer
321 views

ProbabilityDistribution only accepts dx=1 for discrete distributions

Bug introduced in 10.4.1 or earlier and somewhat fixed in 12.0.0 This question maybe related to (95436) but neither its answer nor the documentation for ProbabilityDistribution state whether we may b …
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  • 13.6k
2 votes
1 answer
218 views

A possible bug with regard to DateObjects in Version 10?

Bug introduced in 10.0 and fixed in 10.1 Bug related to the Suggestion Bar Bug While getting used to the new data type Date Object in Version 10 I noted that there seems to be a bug which on my ma …
gwr's user avatar
  • 13.6k
7 votes
1 answer
251 views

Issues with modeling pulses in a very simple system of DAEs

Bug introduced in 10.4.1 or earlier and fixed in 11.0.0 Bug has been confirmed by WRI [Case:3594387]: It does appear that the NDSolve function is not behaving properly in this case and an inciden …
gwr's user avatar
  • 13.6k
4 votes
Accepted

NDSolve DAE solution order is mixed up

It seems that this might be a bug or maybe a weakness of the NDSolvemachinery. One can observe, that with the option "SimplifySystem" -> False the issue does not arise. In fact a lot of settings will …
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  • 13.6k
4 votes

PDF for MixtureDistribution fails in Dataset Query in 11.1

There are three possible solutions imo to the problem: General Advice: Use Datatset to display results only This was already mentioned by @b.gatessucks in his comment and in (87360) gives some deep …
gwr's user avatar
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8 votes
0 answers
143 views

How to customize multipanel BarCharts (e.g., ChartLayout -> "Row")?

Bug introduced in 13.0 In version 13.0.0 support for multipanel plots has been added to 15 visualization functions —among them BarChart. I would like to use ChartLayout -> "Row" to display a couple o …
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  • 13.6k
7 votes
Accepted

Mesh Problems with MatrixPlot

The solution or rather "fix" to the problem seems to be to raise the MaxPlotPoints: data = RandomReal[{0, 1}, {21, 500}]; MatrixPlot[ data, AspectRatio -> Full, FrameTicks -> Automatic, …
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  • 13.6k
26 votes

Some indefinite integrals evaluate in 11.2 but not in 11.3 - what can be done?

Using Rubi in Mathematica 11.3.0 While the issue clearly is to be resolved eventually by WRI, a solution to the problem of obtaining symbolic solutions to indefinite integrals may be to use Rubi whic …
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  • 13.6k
6 votes
0 answers
134 views

Why do some uses of PropertyList crash the kernel?

Bug introduced in 10.1.0 or earlier and fixed in 12.1.0 While looking at the question How to evaluate the "Domain" of an InterpolationObject? I noted that using PropertyList in a way, that seems to b …
gwr's user avatar
  • 13.6k
6 votes
Accepted

Histogram not plotting RandomVariate of EmpiricalDistribution

It seems to be related to the way the binning is determined by Histogram if no explicit bspec is given. Once bspecs are given it seems to work without any problem: Histogram[ data, {0, 95, 5} ] I …
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  • 13.6k