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.
2,099 questions
6
votes
1
answer
102
views
7
votes
1
answer
220
views
Possible error in gaussian quadrature formula for tetrahedron
Bug introduced in 14.2 or earlier and persisting through 14.2.1.
Mathematica is able to give the 15 gaussian integration points and weights for a Tetrahedron[]
<...
- 60k
7
votes
1
answer
222
views
How to use RegionDilation correctly
I'm trying to use RegionDilation on a crescent shape.
What am I doing wrong?
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- 173
7
votes
1
answer
206
views
NSolve hangs on second invocation
Bug introduced in 14.1 or earlier and persisting through 14.2.1.
I've run into an interesting glitch with NSolve, and wonder if anyone here might have an insight ...
- 215
11
votes
3
answers
416
views
Tabular shifts dates by one day
Bug introduced in 14.2 and persisting through 14.2.1.
Why is Tabular shifting the date by one day (as documented by the snapshot)?
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- 151
12
votes
1
answer
424
views
Incorrect matrix eigenvalues in Wolfram 14.2 on Apple ARM M2
Bug introduced in 14.2 or earlier
After update to Wolfram 14.2 I can't reproduce some results which were obtained using older version of Mathematica (12.3 and 13.2).
So far I traced the difference to ...
- 189
2
votes
0
answers
75
views
Strange incorrect output message for modular r-th root computation with PowerMod
In this [Wolfram reference page] we read that:
PowerMod[a,1/r,m] should find a modular $r$-th root of $a$ modulo $m$.
However, with Engine 14.1.0 I get a claim that ...
- 381
7
votes
2
answers
159
views
Bug: Incorrect symbolic integration of Dirac to recover RayleighDistribution?
Context
I am trying to get an analytic expression for PDFs using DiracDelta in Wolfram 14.2.
For instance, This should produce the ...
- 23.4k
3
votes
1
answer
87
views
NMaximize with Polygon domain fails with "The following constraints are not valid"
Running Mathematica v14.2 Windows 10, this fails with The following constraints are not valid...
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- 26.1k
4
votes
0
answers
174
views
WindingPolygon bugs: 2 cases
Upd 20/02/25
Both bugs have been reported to Wolfram, they've confirmed them.
Bug 2:
Sometimes, WindingPolygon inverts the result.
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- 1,624
9
votes
1
answer
118
views
Should Mathematica produce a ConditionalExpression for this integral with a parameter?
Would you consider the following a bug or expected behaviour?
This is as expected:
...
- 238k
8
votes
1
answer
254
views
12
votes
0
answers
222
views
Weird behavior of the AbsArg function
Bug introduced in 13.3 or earlier and persisting through 14.2.1.
I have encountered a very strange behavior of the listable AbsArg function on
...
- 349
0
votes
1
answer
113
views
Possible bug in TimeZone EntityList [closed]
allTimeZones = EntityList["TimeZone"];
TimeZoneConvert[Now, #] & /@ allTimeZones;
Produces errors for several timezones including America/...
8
votes
2
answers
247
views
Is there a bug in FunctionMonotonicity?
Find the range of a for which the function y = 2ax^2 + 4(a - 3)x + 5 is monotonically decreasing in the interval ...
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