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.
2,040
questions
5
votes
3
answers
314
views
Why is the general term of the sequence obtained using the RSolve function incorrect? Could it be a bug?
Bug introduced in 5.0, persisting through 14.0.
Using the RSolve function to find the general term of the sequence is as follows:
...
- 4,063
4
votes
3
answers
229
views
How to make Mathematica plot for a very small region?
I have the following data that I would like to plot using ListPlot.
...
- 421
8
votes
2
answers
157
views
FindRoot changes results from ParametricNDSolve
I solve numerically an equation, and I get the expected behaviour like the following graph
But if I use FindRoot to get the roots before plotting, the plot of my ...
4
votes
0
answers
91
views
Weird behavior of derivative D[] function in v11
Bug introduced after version 9.0.1, in or before version 11.0, fixed before 12.3.
Recently I noticed that a code developed in v13 was giving unexpected errors about the formatting of matrices in v11 (...
- 1,843
5
votes
1
answer
273
views
FourierTransform and InverseFourierTransform are not inverses when using non-default FourierParameters
FourierTransform and InverseFourierTransform are inverses of each other when using the default ...
- 1,856
2
votes
0
answers
53
views
Why RandomSample fails and how to fix this?
Consider the following sampling:
weights = 10^RandomReal[{-13, Log10[35]}, 499500];
vals = Range[Length[weights]];
randomvals = RandomSample[weights -> vals];
...
- 5,733
7
votes
2
answers
343
views
Wrong result for simple real-valued integral (spurious imaginary part)
There's a question on math SE (question 4879248) about this integral:
...
- 233
4
votes
1
answer
60
views
Plot freezes with arbitrary precision complex evaluations
I find that Plot has some strange behavior.
a = {{-5.355`3 I, 0.1589`3 }, {2.305`3, 0.01425`3}};
Det[a] // Abs
gives ...
- 91
11
votes
1
answer
524
views
Why is Mathematica showing a root twice from Reduce or Solve?
If we plot the following, we can see there are seven roots
Plot[{x, 3 Pi (1 - Sin[x])}, {x, 0, 22}]
We can easily solve for these roots
...
- 3,292
7
votes
1
answer
147
views
Incorrect result for Integrate[] over Region
I was doing a calculation that involved integrating rational functions over a triangular region, and eventually noticed some of my results didn't make any sense. After some investigating, I was able ...
- 51
3
votes
1
answer
64
views
ImagePartition with offset. Something wrong with the number of images
I want to do ImagePartition with offset whose offset size is different with x(horizontal) and y(vertical).
Here I got Lena image from
https://en.wikipedia.org/wiki/Lenna#/media/File:Lenna_(test_image)....
- 321
6
votes
1
answer
113
views
Work around for subscripts and superscripts in text cells reverting to SuperScript[...]
Seemingly randomly nicely formatted superscripts and subscripts (e.g. to look like $f_1$) in math in text cells will revert to their long form e.g. Subscript[f, 1]. ...
- 4,429
4
votes
1
answer
119
views
NIntegrate returns TerminatedEvaluation["RecursionLimit"] when called in another function
I try to perform some numerical integration with high precision on version
In[1]:= $Version
Out[1]= "13.3.1 for Linux x86 (64-bit) (July 24, 2023)"
Here ...
- 41
7
votes
1
answer
133
views
Why does VertexColors break Strikethrough?
Bug introduced in 12.3 and persisting through 14.0
FontVariations -> {"StrikeThrough" -> True} stops working when ...
- 272k
4
votes
1
answer
121
views
Why does Mathematica's interface freeze when scrolling to the evaluating cell?
I have some heavy computations in Mathematica that use parallelization. The CPU consumption is ~80-90%. I use ProgressIndicator to trace the progress of the ...
- 5,733
3
votes
0
answers
117
views
DSolveValueNew - A leftover from the development of Wolfram Mathematica14.0?
I found that when you type DSolveValue a suggestion for DSolveValueNew appears. It looks that it is a leftover from the development of version 14.
- 347
5
votes
1
answer
175
views
Finding intersection of two curves using mesh functions
I have the following code which finds intersection of two curves using mesh functions:
...
- 2,233
10
votes
1
answer
164
views
Precision of interpolation function after exporting and importing
I've solved a differential equation using NDSolve with a large working precision prec. The output is a few interpolating ...
- 315
10
votes
2
answers
216
views
Getting different results when integrating with fractions vs decimals [closed]
Bug introduced in 13.3
Not sure what in the Mathematica is going here—admittedly I am a beginner.
But these two expressions seem to me that they should produce the same results.
...
- 101
8
votes
1
answer
237
views
Unicode symbols not encoded properly in BarcodeImage[] in Mathematica 13.3
Trying to generate a simple QR code with ← or U+2190. I got varying results: the same in Mathematica versions 12.3 and 13.1 but very different in version 13.3.
Mathematica 13.3 was updated to ...
- 287
2
votes
1
answer
180
views
Wolfram Engine 13.3.0 dies, is this a bug?
$ wolframscript
Wolfram Language 13.3.0 Engine for Linux x86 (64-bit)
Copyright 1988-2023 Wolfram Research, Inc.
...
- 87
0
votes
0
answers
24
views
ChannelObject::connfail Error
My Mathematica keeps deadlock in DynamicEvaluation and throws the following error upon Abort. How to stop this behavior?
...
- 2,277
11
votes
5
answers
2k
views
Why does Mathematica not recognize a convergent series?
Bug introduced in 12.1, persisting through 13.2 or later
In one of my program run on Wolfram Cloud I run the command:
Sum[(-1)^(Floor[k/2])/(k+1),{k,0,Infinity}]
...
- 719
9
votes
2
answers
398
views
Why does Mathematica get the infinite sum of this representation of the taylor series of $\cos^2(x)$ wrong?
Bug introduced in 12.0 or earlier, persisting through 13.2 or later
Mathematica correctly identifies this sum as $\cos(x)$:
...
1
vote
0
answers
92
views
Why does ridiculous error information appear in Classify with Method GradientBoostedTrees?
The data could be classified correctly by method like LogisticRegression, NearestNeigbors.
The dataset is quiet simple, ...
- 8,619
7
votes
1
answer
121
views
Points are plotted twice in ListPlot
When I do a plot like this
ListPlot[
{Style[{1, 2}, Red],
Style[{2, 3}, Blue],
Style[{3, 4}, Green]}
]
under the colored points, there are duplicates ...
- 121
2
votes
1
answer
143
views
3
votes
2
answers
67
views
Bug in Point Group Conjugacy Class Data
I noticed that in $Version == "13.2.0 for Mac OS X x86 (64-bit) (November 18, 2022)" Mathematica has conflicting ...
- 6,056
4
votes
1
answer
222
views
How to execute a String code in the form of StandardForm?
How to execute a String code in the form of StandardForm?
I want to get execution results for strings of various forms. For this, I used ToExpression.
...
- 1,688
6
votes
3
answers
235
views
Incrementing a random element of an array repeatedly
Consider this code to simulate a simple instance of the coupon collector problem. We initialize an array to {0, 0} and then keep incrementing a random element until we've incremented every element at ...
- 696
0
votes
1
answer
93
views
5
votes
2
answers
236
views
5
votes
1
answer
225
views
Implementation of SINC filter using Integrate results in incorrect output
Bug introduced in 6.0, persisting through 13.3.1.
This is SINC filter, integrate $|H|^2$ from $-\pi/2$ to $\pi/2$.
MMA CODE, Result = 7.27956e-12
...
- 137
1
vote
1
answer
113
views
Method options for `BooleanMinimize`
I am learning about Boolean Functions and I noticed in the docs for BooleanMinimize they reference a Method option, but don't provide what those options can be.
Is there any more information on how ...
- 11
0
votes
0
answers
25
views
DynamicGeoGraphics rendering error when AspectRatio is given, and the output does not match ImageSize
Here's a minimal example.
gm = GeoMarker[{{42.34, -71.08}, {42.35, -71.07}, {42.36, -71.06}}];
DynamicGeoGraphics[gm,AspectRatio->1]
Since GeoGraphics does ...
- 73
4
votes
1
answer
92
views
Chemdraw (CDX) import fails to yield complete molecules for implicit alkyl chains
Mathematica has supported Chemdraw file (CDX) import since 12.1. However, there appear to be an error when side chains are defined in an abbreviated fashion (as is common in organic chemistry):
...
- 3,356
4
votes
3
answers
170
views
Problem with FindGeometricTransform and NMinimize
I'm interested in Centroidal Voronoi tessellation. Here are two examples of unit disk tessellations:
They are the same with respect to rotation.
Recently, I've found ...
- 1,667
4
votes
2
answers
247
views
`RegionWithin` returns incomprehensible result
I try to get the condition "ball inside cube"
RegionWithin[Cuboid[{0, 0, 0}, {a, b, c}], Ball[{x, y, z}, r]]
but Mathematica v12.2 gives error ...
- 53.8k
9
votes
0
answers
219
views
Why is CorrelationFunction returning a value greater than 1?
OK, I'm getting crazy on this:
CorrelationFunction[ARProcess[{0.9}, 1], 1]
And the output is... 1.071 (!)
The symbolic version
...
- 727
1
vote
1
answer
74
views
NCAlgebra 6.0.2 fails to compute the gradient of the trace of a simple quadratic product
NCAlgebra version 6.0.2 fails to compute the gradient of the trace of a quadratic product. Works fine in version ...
- 113
3
votes
1
answer
75
views
Percent symbol with FontFamily setting looks weird in Dendrogram
Bug introduced in 12.3.1 or earlier, persisting through 13.3.1.
...
- 567
1
vote
0
answers
88
views
How to resolve the following problem with DialogInput/PopupMenu?
Consider the following DialogInput:
...
- 5,733
1
vote
0
answers
28
views
Python external evaluator missing first print
Can you confirm this bug when evaluating Python code in Mathmatica?
Type > select Python by clicking on the icon on the left then paste the following code and ...
- 16.8k
7
votes
1
answer
102
views
Unexpected behavior of `Exponent`
Fixed in Version 14.0
According to Exponent:
Exponent[expr, form] gives the maximum power with which ...
- 485
7
votes
1
answer
268
views
6
votes
0
answers
96
views
SetOptions[Plot, FIlling -> Axis] breaks SmoothHistogram of a CDF
Bug introduced in 12.1 or earlier and persists through 13.3 .
UPDATE: I reached out to Wolfram, and they confirmed that it's a bug.
I am using version 12.3. Here's a simple plot of some randomly ...
- 133
2
votes
0
answers
96
views
Does VertexChromaticNumber return the optimal value?
The following code is meant to make a graph where each node represents a bitstring of length d and two nodes are connected if and only if the Hamming distance between their bitstrings is exactly 2. It ...
- 1,119
3
votes
2
answers
323
views
A possible bug about ParametricPlot in version 13.3
example 1
ParametricPlot3D[{x, y, 0}, {x, y} ∈ MengerMesh[2, 2]] // AbsoluteTiming
example 2
...
- 1,180
1
vote
0
answers
91
views
Missing frame ticks after removing tick labels
In this solution by @Mr.Wizard, some of the ticks along the bottom edge of the frame are clearly missing. This happens every time I use Charting`ScaledFrameTicks. Is there a fix?
For reference, here ...
- 1,680
10
votes
0
answers
288
views
Mathematica 13.3 breaks old socket code
Edit 1: A support case with the identification [CASE:5059026] was created.
Edit 2: This has just been confirmed as a bug by Wolfram Research.
I have just heard back from Wolfram Research. They have ...
- 5,249