Tagged Questions

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.

88 views

PerfectNumber messes with my iterator

I am using Mathematica 10.4 (sorry bbgodfrey) (temporary message) Let mmVerbose = 10^2000 + 123123798797192983712873198273122323; kkVerbose = 10^7; The ...
25 views

Why does TemplateApply create two identical notebook objects?

If you start a fresh Mathematica session (front end and all), and run the following ...
67 views

strange FullSimplify result, why zero? [duplicate]

This came up looking at this How to speed up calculation of this equation (FindRoot). Is there some sense to why FullSimplify gives zero here? ...
95 views

LinearProgramming returns an invalid null solution that apparently doesn't satisfy constraints without any warning

Bug introduced in 10.3.1 or earlier and persisting through 10.4.1 While searching to answer the question Solving the magic backyard puzzle with MMA at some time I composed a set of arguments ...
116 views

Problem summing an infinite series

Calculating this sum on Mathematica 10.3 Sum[(-1)^(r - 1)/((a^2 + r^2)r), {r, 1, Infinity}] gives the answer ...
209 views

Possible bug in ListLinePlot

Bug introduced in V8 or earlier and fixed in 10.4 Take a look at the first two points on the chart: ListLinePlot[{15, 30, 32, 33, 34, 35}, Mesh -> All] I ...
163 views

Slow JoinAcross performance

Bug introduced in 10.3 I am using JoinAcross to combine two datasets, where the key is an Integer. ...
142 views

MovingAverage - not enough memory exception

I'm running into an extremely bizarre issue that evades reproduction by means other, than repeating my actions verbatim. Please note, this question is NOT about digitizing a plot. It just describes ...
290 views

Finite Element Method and ElementMeshInterpolation issue in v10.3

Bug introduced in 10.3 I recently installed Mathematica v10.3 and checked a project I was working on few months ago under Mathematica v10.1. In this project I solve a PDE with ...
99 views

Serial - DeviceOpen - Baudrate Error

When trying: ser = DeviceOpen["Serial", {"COM1", "BaudRate" -> 230400}] I get: ...
46 views

CheckboxBar doesn't work with TrackedSymbols

CheckboxBar doesn't work with TrackedSymbols and a custom callback function. Here's an example that doesn't work ...
735 views

Why does Mathematica report that $\int_1^\infty\frac{\sin(\sqrt{x})}{\sqrt{x}}dx$ = $2\cos(1)$?

Bug introduced in 7.0 or earlier and persisting through 10.4 or later Mathematica 10 gives the following very odd result, ...
37 views

DerivativeFilter[] is scaling down the data by ~100 or so, not a true differentiation? [duplicate]

I'm running the following function vzz = DerivativeFilter[z["Path"][[All, 2]], {1}]; But if I then integrate vzz the output z is about 100 smaller than the ...
221 views

sum involving binomial coefficient

To evaluate $\sum_{\substack{\text{even }k\\ 2\leq k\leq m-2}} \binom{m-2}{k-1}(k-1)$, where $m$ is an even integer. Running the following in Mathematica 10.3.0 (October 9, 2015) ...
96 views

how to generate a 3d graph of HCP crystal structure [duplicate]

I am confused with lattice parameter and the basis. The structure I generated is not HCP. To verify this, one could use this plotting function from the answer to Can a LatticeData image be displayed ...
78 views

RandomPoint fails with a large enough number of points

Bug introduced in 10.2.0 and fixed in 10.3.1. RandomPoint is new in 10.2.0. I have defined a simple ellipsoidal parametric region: ...
210 views

Strange behaviour of NotElement in Reduce

Bug introduced in 8.0 or earlier and persisting through 10.4 or later Confirmed, as bug, by WRI: [CASE:3527549] I have observed curious behaviour on domains supplied to ...
88 views

Arrows from GraphicsComplex not converted to Normal form correctly

Bug introduced in 7.0 or earlier and persisting through 10.4.0 Show @ Graph[{1 -> 2, 2 -> 3}, Frame -> True] Normal @ % Is this a pure bug, or have ...
137 views

incorrect exact sum of a series

Sum[(-1)^m*(1/Binomial[2*m + 2, 2] + 1/Binomial[2*m + 3, 2]), {m, 0, Infinity}] gives the right value -2 + π but the same ...
222 views

Grid cuts my images

Bug introduced in V9.0 or earlier and persisting through V10.4.0 pic2 = ImageResize[ ImageCrop@Rasterize@Graphics@Disk[], {Automatic, 40}] ...
48 views

What's meaning of VertexConnectivity?

Are there a conflict in this two place in documentation? In the Basic Examples: Then the Properties & Relations But actually:
129 views

A simple question: Input problem

I have a simple problem. First I define the value of variables, then I calculate the expression as the following: Code 1: ...
45 views

Avoiding the “CloudObjectPrivate” context bug in controls of embedded Manipulates

I have Manipulates that I develop in one notebook and then paste in another. This second notebook is meant for a presentation, and shouldn't have these odd ...
98 views

DateListPlot failing on Inflation Adjusted TimeSeries

Ran across this (possible bug) today. Here's historical West Texas Intermediate oil prices: ...
122 views

FilledCurve inside GraphicsComplex doesn't interpret the integers as points

Bug introduced in V9.0 or earlier and persisting through V10.4.0. Here's an example: ...
97 views

Issues with PlotRange!

When use the following command to plot a graph: Plot[x^Gamma[x - 1], {x, 0, 1}] or: ...
111 views

Erroneous color function for ContourPlot when the function has a small positive region and the PlotRange is specified manually

Consider this ContourPlot ...
175 views

Bug? Problem with derivative of interpolating function from FEM

Bug introduced in 10 or earlier and fixed in version 10.4 I am really not sure if this is a bug or I am missing something very trivial. QUESTION: What I am missing in order to obtain the partial ...
67 views

why does ReadString[“fname”,term] open a persistent stream, and how to close it?

Bug introduced in 10.0 and fixed in 10.3.0 Create a file temp.txt with the following content: test1 ;;; test2 ;;; test3 ;;; ...
126 views

How to get the x-coordinate of a region by it's y-value

I get region like this: region = ConvexHullMesh[data = RandomReal[{0, 100}, {100, 2}]] // RegionBoundary Then I get a equally spaced y-value from minimum to ...
191 views

Export bug in combination with ParallelTable?

I am programming with Mathematica 10.3.1.0 on Windows 10 Professional 64 Bit and have an i7-4940-MX 3,1 GHz processor (4 cores). When I use in the example code below ...
140 views

NDSolveFiniteDifferenceDerivative gives wrong result when the precision is not MachinePrecision

Bug introduced in 8 or earlier and persists through 10.3.1 I want to get a pseudospectral differentiation matrix by NDSolve`FiniteDifferenceDerivative. ...
79 views

FrameTicks not appearing with Export to .png file [duplicate]

I'm using 10.1 on Ubuntu 14.04. I am trying to export some plots. However, when I export the plots using Export[file.png, figure, ImageResolution->360], the ...
111 views

Deleting zero edges from a graph causes bizarre behavior

Bug introduced in 10.3.0 and fixed in 10.4. Consider the following (very simple) graph, with two vertices and one edge: g = Graph[{1, 2}, {1 <-> 2}]; ...
90 views

MathID changes after reboot on Linux

I recently installed Mathematica 10.3 on Arch Linux. I activated my license, and all seemed to be well, but when I reboot my computer, the MathID changes, and it shows that the software is not ...
102 views

Inset in ArrayPlot

It seems the options in the Inset object will be ignored when passing to ArrayPlot: ...
161 views

Possible bug with UpTo

Bug introduced in 10.3 and fixed in 10.4 -- Just checking whether anyone else can replicate this, or if it's a problem on my computer. The following refuses to execute on my machine, 10.3.1: ...
191 views

Optional throws error when called from a package. Workaround?

Bug introduced in 8.0 or earlier and persisting through 10.3 or later. Case number: 305932. In the front-end notebook (Mathematica 9.0 and 10.2): ...
196 views

Strange WhenEvent Behavior

Bug introduced in 10.3 or earlier and persisting through 10.3.1 or later Given: ...
129 views

Saved InterpolatingFunction behaving badly

Bug introduced in 10 and persists through 10.3.1 or later I created this InterpolatingFunction, and NIntegrate gives an ...
92 views

unhandled win32 exception in WolframKernel.exe in DSolve of non-linear ODE in one variable

Bug persisting through 10.4. (windows 7, 64 bit) Installed 10.3.1 and started to run some old ode's. in V 9, this ode used to return unsolved, which is ok, but in 10.3.1 now the kernel crashes. ...
383 views

Bug: Wrong results from NSolve on coupled polynomials. WorkingPrecision->Automatic fails

OP UPDATE: I received an email from WR on 1-18-2016: "...It does appear that the NSolve function is not behaving properly in this case and I have forwarded an incident report to our developers with ...
598 views

$\sum_{k=1}^{\infty }\left\lfloor\frac{5}{5^k}\right\rfloor$ giving wrong answer?

Bug introduced in 7.0 or earlier and persisting through 10.4 or later When I try to evaluate the following: $$\sum_{k=1}^{\infty }\Bigg\lfloor\frac{5}{5^k}\Bigg\rfloor$$ using ...
51 views

Usage information garbled when printed to pdf or printer

In Mathematica v10.2 running in the notebook Information ?Integrate yields the following But, when printed to printer or ...
103 views

How to avoid crashing with ConformImages?

ConformImages[] is causing a kernel crash when applied to a list of 5k images. Is there any way to apply ConformImages on the list in batches or asynchronously to ...
123 views

How can I get Mathematica to support the clipboard?

For several decades, the clipboard feature supported by all mainstream operating systems has functioned as a method of exchange between applications (not just within them), by serving as a kind of ...
268 views

Strange bug: Product[1/(1-1/2^(n-1)),{n,2,Infinity}] = 0?

This infinite product is correct: Product[1/(1 - 1/2^n), {n, 1, Infinity}] (* 1/QPochhammer[1/2, 1/2] *) Numerical value of this result is not equal to zero ...
165 views

Bug in RegionMember?

Bug persisting through 10.4.1 RegionMember (new in V10) appears to have a bug. For some polygons it finds points that are clearly outside to be "members" of the ...