New answers tagged bugs
7
votes
Accepted
Help understanding a bug when FoldList using RandomChoice is Compiled
Here' s a simpler example that demonstrates the same issue:
...
- 83.4k
2
votes
Output of code generated by CellPrint goes to the end of notebook
I reproduce this behavior with versions 5.2, 8.0.4, 12.3.1 and 13.0.1 on Win10 x64.
I would count this as a long-standing FrontEnd bug. An extended example:
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- 56.1k
2
votes
Problem with a DAE and DiscreteVariables
One can keep differentiating until the DAE turns into an ODE:
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- 216k
3
votes
ComplexExpand no longer assumes Derivative[__][__][__] as real
Here another workaround that may be safe (as it would likely affect only expressions containing u'):
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- 216k
4
votes
ComplexExpand no longer assumes Derivative[__][__][__] as real
Comments have identified this as a bug; in the meantime, a simple way to bring back the old behavior for ComplexExpand in a given session can be obtained by adding ...
- 8,208
0
votes
Strange behaviour in GeometricTransformation
I have an answer from Technical Support.
"ReflectionTransform is not behaving properly" - Suggest that if the community agrees that this is posted as a bug.
- 3,564
6
votes
Constructing a RootSum object changes existing internal syntax
Another workaround is not to put the single Function variable in a list.
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- 3,200
6
votes
Accepted
Constructing a RootSum object changes existing internal syntax
The bug does not exist for Slot[1], just for Function with named parameters. (A dummy variable is substituted for ...
- 216k
0
votes
Accepted
An unclear Mathematica result for Borel summation
My explanation, but not a justification, of the Mathematica result is as follows.
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- 17.1k
3
votes
Accepted
Problem with a DAE and DiscreteVariables
As stated in the question, a[t] does not behave properly for the code in the question, which probably is a bug. Circumventing this problem can be accomplished with
<...
- 58.4k
1
vote
Why do I see Part::partw error when using NDSolveValue?
This was a bug that's fixed in V13.0 (or earlier).
- 36.1k
4
votes
Surface integral with ImplicitRegion not working as expected?
This is a bug.
Integrate[z, {x, y, z} ∈
DiscretizeRegion[myReg2, MaxCellMeasure -> .01]]
-25.0531
- 32.7k
4
votes
Accepted
Surface integral with ImplicitRegion not working as expected?
This is a bug, but just wanted to post an answer to share what I found. Maybe it'll help someone at Wolfram figure out what's up.
Here's a plot of the region with the $z = 0$ plane shown.
Weird ...
- 8,208
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