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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6
votes
2answers
300 views

Integral does not converge (when it should) [duplicate]

Bug introduced in 10.0 and fixed in 10.0.2 I was looking at integrals like: Integrate[HermiteH[50, x]*Exp[-x^2], {x, 0, Infinity}] which gave me a "does not ...
5
votes
1answer
178 views

How to use Get on a folder

In the documentation for Get it says: If the file found by <<name is a directory, the Wolfram Language will try to ...
5
votes
1answer
92 views

Specifying WorkingPrecision in LogLogPlot produces invalid plots [duplicate]

I seem to have found a bug with LogLogPlot in Version 10. If I specify a working precision, the function produces total garbage. Here is a simple example. The first ...
1
vote
1answer
76 views

FrameTicks in BarChart

I am finding it a strange issue. I want to make a BarChart as ...
4
votes
0answers
76 views

Exclusion disappears but style doesn't work

Consider this code: f[x_]:=(6 + 4 x + x^2 - x^3)/(x-2) Plot[f[x], {x, -10, 10}, Exclusions -> {2}, ExclusionsStyle -> Directive[Red, Dashed]] It produces ...
5
votes
2answers
191 views

How to use FontWeight options in Mathematica 10.x

I‘m using stylesheets to create customized styles for course materials. That includes using fonts like Gill Sans, and Helvetica (Neue). Up to MMA version 9, it worked. When switching to version 10, ...
6
votes
2answers
147 views

Using MovingMap to calculate percentage changes

MovingMap (new in version 10) applies a function to discrete data over a moving window. This is very convenient for calculating the percentage change of a series. ...
16
votes
3answers
188 views

Resizing or moving Notebook window causes Manipulate to update its argument

Bug introduced in 10.0 and persisting through 10.2.0 Check this example: Manipulate[Grid[{{RandomReal[10]}, {Plot[Sin[x], {x, 0, 2 Pi}]}}], {a, 1, 3}] As ...
7
votes
1answer
185 views

Problem with DiscretizeRegion

Bug fixed in 10.1.0 ...
14
votes
2answers
370 views

Messages leak out from Block

fixed in 10.1 When assigning message to a symbol localized by Block, I would expect that this message is not accessible outside of ...
9
votes
2answers
100 views

Testing Notebook severe slowdown with newlines

Bug introduced in 10.0 and fixed in 10.1.0 I am having a severe slowdown problem with Mathematica 10 new Testing Notebook feature (File -> New -> Testing Notebook). Please try this simple test: ...
4
votes
1answer
153 views

OutputResponse in V9 vs V10

Bug introduced in 10.0.1 and persisting through 10.2 or later I have same code that works in version 9.0.1, but not in version 10.0.1.0 (according to @Sektor, it works in 10.0.0.0, too). ...
11
votes
1answer
231 views

Possible bug: Quantity[2,“meters”] returns 2 None meters

I'm using 10.0 for Linux. Trial 1: Quantity[2,"meters"] 2 None meters Trial 2: Quantity[2,"Meters"] 2 meters Trial 3: ...
4
votes
0answers
40 views

Bug? Kernel Crash on SparseArray access [duplicate]

Bug introduced in 5.2 and fixed in 10.1.0 The following simple code s = SparseArray[{}, {10, 10}] s[[1, {1, 2, 3, 1, 1}]] = {a, b, c, d, e} on my machine ...
3
votes
1answer
74 views

Why doesn't my expression evaluate at the subkernel?

Consider this code: ...
5
votes
1answer
192 views

Extra spaces when exporting strings into pdf (bug, linux)

Rationale: Imagine you would like to create a publication quality figure in Mathematica, from under Linux. Naturally, it will contain text/labels. Problem: Here is a simple string ...
4
votes
1answer
84 views

Strange appearance artefact in ActionMenu

I've noticed a strange thing with ActionMenu which can also be seen in the documentation for V9 and V10 on OS X. It seems that when an ...
3
votes
2answers
75 views

ReadLine[file] after reopening a closed stream doesn't read at the beginning of file?

Take a text file from your system: file = OpenRead["path/to/your/file"] ReadLine[file] Close[file] Here ReadLine[file] ...
4
votes
2answers
110 views

Adding assumptions changes the result of Integrate

When I try to calculate the following integral: ...
4
votes
2answers
126 views

DeleteMissing issues [duplicate]

Bug introduced in 10.0.0 and fixed in 10.1.0. Has anyone had problems with the DeleteMissing function in Mathematica 10.0.2? I find that it rarely works. Most of ...
11
votes
1answer
142 views

Incorrect use of Scaled causes crash

Bug introduced in 8.0 and fixed in 10.1.0 While playing with Scaled, I made a syntax error which caused a crash instead of an error message ... Do you get the ...
14
votes
1answer
225 views

Compability between Graphics coordinates and shifted projections in GeoGraphics

Bug status V. 10.0.0 - V. 10.2 I'd expect GeoGraphics to handle positions of points since they are provided with ...
3
votes
1answer
57 views

LineScaledCoordinate problem for exact coordinates

Edit: Confirmed bug. CASE:2326540. Still the case in V 10.1. Solution: Wait and use N meanwhile. I've faced this problem ...
4
votes
1answer
181 views

Definitions are not distributed to parallel kernels

Bug introduced in 10.0 and fixed in 10.0.2. I have a small package with utilities, which looks like that: ...
14
votes
1answer
123 views

Unexpected pattern matching behaviour: PatternSequence vs. Optional

fixed in 10.1 (windows) Consider the following pattern-matching expressions: ...
4
votes
1answer
158 views

What is “MouseDragged”?

Maybe I'm picky but I don't consider static pressed button: "dragging". EventHandler[Framed[1], {"MouseDragged" :> (Print@RandomReal[])}] neither does ...
6
votes
1answer
142 views

Long running ToElementMesh with very “large” domains

I'm trying to solve a system of PDE over a large domain. This doesn't means I need to have a huge amount of mesh points and mesh elements to discretize the domain. Just that the domains has a big ...
4
votes
0answers
70 views

Extraneous reaped data with NDSolve and WhenEvent

Bug introduced in 9.0 or earlier and fixed in 10.1 In exploring What is the range of values $x$ for which $f(x)$ is higher than $k$ over a given domain?, I came across the following strange ...
2
votes
2answers
137 views

KeyMap on a flat Dataset (i.e. Dataset@Association)

How can I go from Dataset[<|"A" -> 1, "B" -> 2, "C" -> 3|>] to ...
2
votes
3answers
177 views

Custom Grid Lines for ProbabilityScalePlot

I'm plotting up some data using a ProbabilityScalePlot in Mathematica 8. It currently looks like so: Code: ...
0
votes
0answers
60 views

Strange behavior of AssociationMap [duplicate]

here is what I've searched over stackexchange I'm on windows 8.1 x64 with Mathema... 10.0.2. sometimes, Definition[AssociationMap ]=Null I found ...
6
votes
1answer
225 views

Incorrect evaluation of integral involving a DiracDelta, whose argument has infinitely many zeros

Let's say $X>0$ is a random variable with probability density $p_X(x)={\rm e}^{-x}$. Define the random variable $Y=\sin(X)$. From the transformation theorem for probabilities we know that its ...
22
votes
1answer
567 views

Excessive memory use by Mathematica kernel in 10.0.2 after executing simple commands

Bug introduced in 10.0 and fixed in 10.1 Warning: the code below may hang your system if you have the Suggestions Bar enabled in Mathematica < 10.1. When issuing the following simple ...
7
votes
0answers
117 views

One less arrow vector than asked for

Bug introduced in v10 and persisting through 10.2 or later Consider the following code: ...
2
votes
1answer
162 views

How can I make a map of Sierra Leone at the district level?

Hi I am trying to make a map of Sierra Leone and am running into trouble. SL has 4 provinces: Northern, Southern, Eastern, and Western, which are diced up into 14 districts as shown here: ...
7
votes
1answer
157 views

Instant kernel crash when using `+=` on `SparseArray` with repeated entries

Bug introduced in 5.2 and fixed in 10.1.0 Not sure if this is known behavior or not, but the following two lines produce an instant kernel crash (I'm using Mathematica 10.0.1 Windows 64-bit): ...
5
votes
3answers
394 views

Bug in complicated Limit

The code Limit[Log[2 - Sin[x]*Cos[x]], x -> Infinity] outputs Interval[{0, Log[3]}] in Mathematica 10.0.2.0 . It should ...
5
votes
0answers
129 views

Kernel sometimes quit after second evaluation of ListVectorPlot

But introduced in 10.0.0 and persisting through 10.1 (update: bug remains in 10.1 on windows) In Mathematica 10.01 Linux x386 execution of the expression ...
3
votes
2answers
136 views

BUG: Problems generating FEM ElementMesh in 1-D

fixed in 10.1 (windows) I'm trying to build an ElementMesh for a simple 1-D problem. First, I build the boundary ...
9
votes
0answers
121 views

Why is this evaluation halved when adding units?

Why does this strange behavior occur when dealing with units and quantities? ...
3
votes
0answers
59 views

Syntax error in debug mode

Bug introduced in 9.0 or earlier and persisting through 10.2.0 It appears that in debug mode, the \[Piecewise] symbol gives syntax error. Is it a bug? Are there ...
3
votes
1answer
96 views

Evaluate specific cells in Mathematica

I have a very simple problem with Mathematica that I couldn't find an easy answer to. I have long notebook with a lot of cells and want to evaluate a specific cells inline from another cell. So far I ...
1
vote
1answer
109 views

Efficient method of raising matrix to a variable power?

I have a $2 \times 2$ matrix $A$, where each element is a 12th order polynomial in a parameter $a$. I need to raise this matrix $A$ to the $-t/T$ power, where $T$ is a known scalar (for this ...
2
votes
2answers
261 views

After definite integration the result is still integration variable dependent!

This integral $\int _{-\infty }^{\infty }\int _{-\infty }^{\infty }\int _{-\infty }^{\infty }\frac{\exp \left(\frac{2}{x^2+y^2+z^2+1}-2\right)}{\left(x^2+y^2+z^2+1\right)^4}dzdydx$ or ...
4
votes
1answer
107 views

LogLogPlot plugs in zero

Bug introduced in 10.0 and fixed in 10.0.2 In testing the answers to Plot result of non analytical-integral in V10.0.1, I came across this behavior of ...
3
votes
2answers
313 views

SystemException[“MemoryAllocationFailure”, …] with NMaximize

I have a complicated analytical expression that needs to be maximized with respect to a parameter t: ...
13
votes
5answers
754 views

Gap in a continuous plot

Why do I get a gap in the plot below and how can I fix it? (If you are interested in it, you can see a new related question: How to plot an implicit value funtion, which is also a little chanlenging) ...
7
votes
1answer
208 views

10.0.2 breaks a recursive “trie” query

10.0.2 Dataset type system complication breaks a recursive trie constructor that worked in 0.1: ...
25
votes
3answers
2k views

Generating 250 random points crashes the kernel, but not 249

Fixed in 10.1.0. Consider the following function, which generates uniformly random points on the surface of the 2-sphere: ...
2
votes
0answers
86 views

Font rendering difference between .jpg & .pdf [duplicate]

I have some planar graphics involving lines and text, produced by Line[] and Text[], accepting the default font on the latter. ...