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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8
votes
1answer
539 views

Random variables with transformed discrete distributions cannot be applied to Probability[] function?

I have two discrete uniform distributions over same support: Dx = DiscreteUniformDistribution[{-8, 8}]; Dy = DiscreteUniformDistribution[{-8, 8}]; I use ...
10
votes
1answer
538 views

GeoDirection and GeoDistance Memory Leaks: How to Recover the Memory?

Bug introduced in 7.0 and fixed in 9.0.0 The functions GeoDirection and GeoDistance have memory leaks. To see this, run the example functions below and watch as the Physical Memory Available in the ...
6
votes
1answer
443 views

Dialog crashes Mathematica

I have some dialog windows in a GUI of which one regularly crashes the kernel. I managed to focus on this particular piece of code, though I don't really know what causes the crash: ...
21
votes
3answers
843 views

Memory Leak in Frontend - anyone know a workaround?

When using Rasterize on a Graphics expression composed of many differently coloured Graphics objects memory is allocated in the frontend which is then not released or reused when a similar graphic ...
9
votes
2answers
1k views

Bug in Integrate for Mathematica

Bug introduced in 8.0.0 and fixed in 9.0.0 Consider the following: ...
21
votes
1answer
564 views

How to fix broken InterpolatingFunction?

Bug introduced in 8.0 and fixed in 9.0.0 I have an InterpolatingFunction based on irregularly-gridded data, like this: ...
45
votes
1answer
2k views

Transferring a large amount of data in parallel calculations

Bug fixed in version 11.1 Functions like MemberQ, FreeQ, etc. no longer unpack. Yay! This question is inspired by one of @...
13
votes
1answer
276 views

Effects of single-point and multi-point calls of Point on plot range

Several Graphics primitives are listable. For instance, Point accepts lists of coordinates so that multiple calls to Point are ...
21
votes
2answers
2k views

Why does Mathematica give the wrong answer when integrating?

Bug introduced in 8.0 or earlier and fixed in 9.0.0 I integrate Integrate[Exp[I Cos[b - c]] Cos[b], {b, 0, 2 Pi}] Mathematica gives: ...
3
votes
1answer
331 views

Avoid crash in recursive Dynamic

With the following Dynamic cell, I can reproducibly crash Mathematica, so do not try this unless you have saved all your work! ...
10
votes
2answers
640 views

Why does ListPlot ignore some global options?

Bug introduced in 7.0.1 or earlier and fixed in 8.0.1' Why does the following plot no use the global PlotMarkers option? ...
5
votes
1answer
773 views

Invisible \[Conjugate] glyph in the linux frontend

Bug introduced in 8.0 or earlier and fixed in 9.0.0 Concerns Linux I have a very annoying problem. The Conjugate glyph (*) does not show when I type. That is, if I type ...
6
votes
2answers
460 views

NullSpace[_, Method->“OneStepRowReduction”] is sometimes wrong; how can I work out when this happens?

Edit 2015: Has this been fixed yet? (This is on MMA 7.0.1.0 on OS X) I've just found a large matrix m for which NullSpace[m] ...
6
votes
1answer
198 views

Bug in LengthWhile?

Bug introduced in 8.0.0 and fixed in 8.0.1 Is this a bug or my MMA went insane or I'm missing something? LengthWhile[Reverse@IntegerDigits[1000], # == 0 &] ...
10
votes
2answers
238 views

How to Write into multiple files?

Note: this is fixed in version 9. I want to put expressions into multiple files simultaneously, with the following code: ...
9
votes
4answers
390 views

Unexpected behavior from GatherBy in version 7

Bug introduced in 7.0 or earlier and fixed in 8.0.4 or earlier I have come across what appears to be a bug in GatherBy. It appears similar to the problem of using ...
17
votes
3answers
442 views

How can I set Grid alignments using numbers?

There is an example in the Alignment documentation (it also appears in the Grid documentation): ...
19
votes
2answers
1k views

How to export and import Graphs with additional data?

I'm trying to export and then later import graphs with additional data added such as VertexLabels and EdgeLabels. When I export ...
18
votes
1answer
1k views

How to work with characters from CJK Unified Ideographs Extension B correctly?

Background: Recently I'm trying to deal with some Chinese characters which belongs to the CJK Unified Ideographs Extension B block. The motive comes from some further interest following a former ...