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.

Filter by
Sorted by
Tagged with
3
votes
0answers
56 views

Why does exporting a plot in raster graphics formats add a red background?

Bug introduced in 12.0 or earlier and persisting in 12.3.1 I've generated a Mathematica plot. When I right-click it and save it in a SVG file format like PDF or EPS, it looks great. (Unfortunately, I ...
2
votes
0answers
22 views

Sparse6 format broken for multigraphs

There seems to be a bug in Export for the "Sparse6" graph format, when the graph to be exported is a multigraph (i.e. has repeated edges). For example, ...
4
votes
1answer
76 views

Posible variable naming bug?

First integral and second integral are the same just replacing $\text{pb}$ <--> $x$. While Mathematica is not able to evaluate the first integral, it can evaluate the second one ...
4
votes
0answers
55 views

Is it intended that CoefficientRules permutes exponent vectors when given a monomial order?

I noticed an odd behavior in CoefficientRules when you give it a monomial order: ...
2
votes
0answers
50 views

Solution to differential equation only starts at random times (numerical error?)

I am solving a set of differential equations with an oscillatory forcing (square wave). Instead of the solution starting to oscillate immediately it stays still until some time. That varies with small ...
1
vote
0answers
70 views

Inconsistency of interpreting TableForm inputs

Consider this line of code and its result: TableForm[{{a, b}, {c, d}}, TableHeadings -> {None, {1, 2}}] As you see, when I assign the output of ...
5
votes
0answers
88 views

MoleculePlot is completely unfunctional when DefaultStyleDefinitions sets to ReverseColor.nb [duplicate]

If you set the DefaultStyleDefinitions sets to ReverseColor.nb then when you try to execute the example from the MoleculePlot document, your MoleculePlot will have blank result like even if you ...
5
votes
2answers
81 views

Issues with contour labelling

Bug introduced in 8 or earlier and persisting through 12.3.1 or later At least two previous questions, 109778 and 13545, have identified bugs in contour labelling. Here are two more. I would welcome ...
2
votes
0answers
68 views

Unexpected result from `Between`

The documentation mentions that Between assumes the pair is sorted: http://reference.wolfram.com/language/ref/Between.html They give the following examples: ...
7
votes
3answers
345 views

Converges or diverges?

Studying the behavior of the series $$ \sum _{n=1}^{\infty } \left(1-\frac{\log (n)}{n}\right)^{2 n}$$, I try in 12.3.1 on Windows 10 ...
9
votes
1answer
238 views

Undocumented behaviour of Series in Mathematica 12.3

I have discovered a very inconvenient behaviour of SeriesData in a new version of Mathematica v12.3.0: it automatically expands brackets in the series coefficients! Example: For the input ...
4
votes
1answer
136 views

Why does DatePlus[] return different result for String date vs DateObject date?

Bug introduced in v12.1.1 or earlier and fixed in v 12.3.1. I am on Mathematica 12.1.1, running the following code and getting different results. Is it bug in DatePlus? Setup ...
1
vote
1answer
52 views

Strange behavior exporting UnsignedInteger64 in HDF5 format

The UnsignedInteger64 data format should be able to encode correctly any integer in $[0,2^{64}-1]$. When using this data format with ...
4
votes
1answer
118 views

Export is not clearing memory

Version: all 12.x OS: Windows 10 and MacOS I am having an issue with Export not clearing memory after it is done with exporting to an .mx file. I have reviewed other posts concering memory issues with ...
4
votes
1answer
181 views

Hebrew fonts gone or messed up in v. 12.3

It seems that Hebrew fonts in general are not visible in the Notebooks, for v. 12.3. Sometimes they overwrite neighboring English text. I have checked the fonts, text color, etc. -- nada. If I export ...
4
votes
1answer
212 views

Fit: Experimental`NumericalFunction error when fitting a black-box function

Bug appearing in at least 12.0.0 and 12.3.1 I'm trying some multidimensional Chebyshev fits. First, define a wrapper to prevent premature symbolic evaluation (I don't want a power series result): <...
0
votes
0answers
27 views

General solution for plotting small scales. (ListPointPlot3D fails for small numbers) [duplicate]

As pointed out in ListPlot3D not working for very small numbers ListPlot3D and other plotting functions such as ListPointPlot3D ...
3
votes
2answers
159 views

MoleculePlot always returns an empty plot

MoleculePlot@Molecule["O=C(C1CCC1)S[C@@H]1CCC1(C)C"] This is a documented example usage of MoleculePlot, but it ...
8
votes
2answers
224 views

MorphologicalEulerNumber misbehaving in 3D?

Context I would like to compute the MorphologicalEulerNumber of 3D GaussianRandomField as a function of height above a given threshold. Attempt I proceed as follows:...
2
votes
2answers
155 views

Incorrect result of AsymptoticIntegrate

The result in 12.3.1 on Windows 10 of as1 = AsymptoticIntegrate[Log[t]^2/Sqrt[t^2 + 1], {t, 2, x}, {x, Infinity, 1}] ...
5
votes
1answer
191 views

Wrong input to Line[] crashes the Front End

WARNING: The code in this post crashes the Front End on my computer, causing all unsaved work to be lost. Be sure to save your work before trying this out! ...
5
votes
2answers
239 views

Fourier coefficient of $\frac{1}{5 + 4\cos(x)}$ wrong

I've been trying to use Mathematica to compute the Fourier coefficient of $$ f(x) = \frac{1}{5 + 4\cos(x)}, $$ which is a $2\pi$ periodic function. Inputting ...
0
votes
0answers
65 views

Problem with FunctionRange

Finding the range of RealAbs[Log[1 + x] - Log[1 - x]] - RealAbs[x - y]/(1 + RealAbs[x - y]) on the set ...
5
votes
1answer
135 views

Problem with RegionMember

I think there is potentially a bug in RegionMember function, particularly in the RegionMember[reg] form. Can you evaluate the ...
9
votes
1answer
330 views

Zeta zeros bug in Mathematica 12.0.0.0

In Mathematica 12.0.0.0 when I input one of these: Log[2/Im[ZetaZero[127]]] Log[2/Im[ZetaZero[128]]] Log[2/Im[ZetaZero[127]]]//N Log[2/Im[ZetaZero[128]]]//N ...
8
votes
0answers
131 views

ResourceFunction memory leak?

Bug introduced in 12.3 or earlier and persisting through 12.3.1 or later ResourceFunction seems to cause a substantial memory leak when called many times. e.g. to ...
3
votes
1answer
108 views

What is the scope of the bug where Piecewise breaks DSolve?

Bug introduced after 9.0.1, persisting through 12.3.1. I have identified a bug in DSolve when differential equation includes a ...
1
vote
1answer
76 views

Incorrect result of integration with GenerateConditions

The GenerateConditions->True option of the Integrate command is useful and works properly in most cases. However, there are ...
4
votes
0answers
153 views

Inconsistent Output Bug and Code-Quits-Kernel Bug with Compile

This is the strangest bug I've encountered. In my experience, variations in the code will unexpectedly crash the kernel, give inconsistent output, or produce expected results with no problems. 1) Code-...
3
votes
1answer
219 views

Why does this lead to zero when integrating a non-negative function?

When I try to integrate this $\int_0^{1} \frac{\log ^2(x+1) \log ^2(1-x)}{x} \, dx$, it leads to 0. And when I use NIntegrate, it turns into a positive number, ...
10
votes
1answer
263 views

"instruction 9223372036854775807" Bug and Bug with Using DeleteCases[] inside Compile[]

I get an error referring to "instruction 9223372036854775807" as follows. I run the code ...
2
votes
1answer
54 views

BSplineFunction returns unevaluated when its degree is equal to the number of control points

Bug persisting through 12.3.1 [CASE:4855260] It seems that BSplineFunction always returns unevaluated without warnings, when its degree is equal to the number of ...
1
vote
2answers
97 views

DateBounds gives strange results

In v12.3.1, this code DateBounds[ {DateObject[{2013, 1, 1, 1, 0, 0.}, "Instant", "Gregorian", 1.]}, "Year"] gives which seems ...
1
vote
1answer
71 views

What causes RegionResize errors for maps of specific countries?

I want to resize the map of the country as below. ...
1
vote
1answer
60 views

Is this behavior of the Series function correct

While series expanding a function, I got an unexpected result, which seems like an error to me. I have boiled it down to this minimum (non) working example: ...
0
votes
1answer
61 views

Mysterious RegionDistanceFunction::regp message

Bug introduced in 12.3.1 or earlier [CASE:4853257] I encountered a strange problem with RegionDistanceFunction. Consider this list of points (I'm forced to use <...
1
vote
1answer
116 views

Export Grid object to pdf without border?

When I try to export a Grid object with a White background, I get a gray border around 3 of the 4 sides in the resulting pdf: ...
0
votes
0answers
42 views

Symbolic 3x3 Jacobian matrix not being computed as expected

First question I have ever typed in a stackexchange forum so I hope you'll forgive me if i make rookie mistakes. I'm try to compute the symbolic expression of a 3x3 Jacobian of a vector ...
1
vote
1answer
52 views

Unwanted clipped regions in ListContourPlot, ListDensityPlot, or ListPlot3D on Windows

Let my data be something like ...
4
votes
0answers
114 views

MMA does not provide the correct asymptote for an integral function

Given is the function $$f(x)=\int_0^\infty \mathbb{exp}\left(-\frac{x^2}{2t^2}-t\right)\mathbb{d}t$$ Mathematica returns for the asymptotic behavior $x\to\infty$ using ...
1
vote
0answers
54 views

logit ScalingFunctions

Having learned how to make symlog axes in this question, I was interested in the logit scale, the transforms of which are ...
2
votes
1answer
150 views

Does this series converge or diverge?

Let us consider the series $\sum_{n=1}^\infty \frac {\{\sqrt n\}-\frac 1 2} n$, where $\{\cdot\}$ denotes the fractional part of a real number. On the one hand, ...
4
votes
0answers
69 views

VertexInComponent not working properly on edgless graphs

Bug introduced in 12.1 and persisting through 12.3.1 Note: The 3rd argument of VertexInComponent was introduced in 12.1. The code ...
2
votes
0answers
38 views

Issues in FiniteGroupData Character Tables

Using $Version == "12.3.0 for Mac OS X x86 (64-bit) (May 10, 2021)" and executing ...
1
vote
0answers
94 views

Is this a bug of ListLogPlot? (Bug introduced in v12.1 and continuing)

Using ListLogPlot[Range[10000], Axes -> True, Frame -> True], only the left frame has a log scale tick, the right frame still has a linear scale tick.
0
votes
2answers
129 views

NDSolveValue::ndinid: Initial condition Sign[x8\$...] is not on the range specified by the discrete variable NDSolve`s\$

Bug introduced in 12.3 or earlier and persisting through 12.3.1 or later I've checked the question about NDSolve::ndinid This is the equation(Sorry for the complexity of this equation) and it's ...
10
votes
2answers
440 views

Bug in density function

Executing ...
4
votes
0answers
59 views

Residue for $L(s,\chi_1)$ not same in Mathematica as theoretical value

I want to find the residue of Dirichlet-L function, defined as $L(s,\chi)= \sum_{n=1}^\infty \frac{\chi(n)}{n^s}$ for $Re(s)>1$. We know that $Res_{s=1}L(s,\chi_1)=\frac{\phi(k)}{k}$, where $\chi$ ...
3
votes
0answers
87 views

(Possibly bugs? ) Wrong results provided by `DEigensystem`

I was trying DEigensystem with the following code: ...
3
votes
1answer
59 views

ListPlot with Opacity strange outcome

Bug introduced in 12.0 or earlier and fixed in 12.3. Simply do this ...

1
2 3 4 5
36