Questions tagged [warning-messages]

The tag has no usage guidance.

244 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
9
votes
0answers
421 views

Spurious Error Messages from NDSolve when Using WhenEvent with Time Delays

Bug introduced between versions 10.1 and 10.4, and resolved in 11.3. Using either 11.2 or 10.4 on Windows 10 (64 bit), I am unable to reproduce the answer by March to question 99576. Specifically, ...
8
votes
0answers
175 views

SiegelTheta throws errors from calling Range with complex arguments

Bug introduced in 8.0 or earlier and persists through 12.1 or later This may or may not be related to the bug reported in this question. I was trying to verify the results of this challenge over on ...
7
votes
0answers
50 views

BarChart does not display asymmetric error bars correctly

BarChart seems to read the uncertainty in elements the other way around. The object: Around[5, {1, 10}] is evaluated as . However, when you use it in a BarChart, the uncertainties are swapped: ...
6
votes
0answers
161 views

How can I prevent errors with ReplicateLayer[]?

I am trying to build a NetGraph[] that takes input of the form {{0.6},{0.6},...,{0.8},{0.8}} and multiplies the last sequence ...
6
votes
0answers
143 views

Problem with my user name

I'm trying to use the new website ("Wolfram Function Repository") and i get the following error: ...
6
votes
0answers
406 views

Mathematica 11 introduced strange autocomplete bug

today i upgraded from MM 10.4.1 (which run without any problems) to MM 11. But for me, it introduced a strange autocomplete-bug. When i try to type in "Plot" i get a huge (>5seconds) lag when i come ...
6
votes
0answers
290 views

Mathematica 10.4 crashes when using too many font sizes

While working on How to make the digits of π go around in a spiral like this? I encountered a problem that Mathematica would crash at regular intervals with an internal self-test error, either ...
5
votes
0answers
204 views

There seem to be severe issues with Mathematica 12.1 running System Modeler models and with WSM 12.1 itself on Windows 10

I am using Wolfram Mathematica 12.1 and the Wolfram System Modeler 12.1 on a Windows 10 (64 Bit) notebook. Pretty much exactly since yesterday (2020-04-10), I am experiencing severe and previously ...
5
votes
0answers
72 views

Double summation giving unexpected result

The expression (in a notebook with Wolfram Mathematica 12.0.0) Sum[s[i, j] - s[j, i], {j, b}, {i, b}] Produces the result 1/2 b EulerPhi[b] Can anyone ...
5
votes
0answers
168 views

NetTrain on a UNet with a NVidia Quadro P5200 GPU

I am trying to train a UNet on my laptop (Lenovo P72) and I obtain the following error when I use NetTrain on it: CompiledFunction::cfta: Argument {Mean[LibraryFunctionError[LIBRARY_FUNCTION_ERROR,...
5
votes
0answers
75 views

How to prevent the message: Not enough memory to display a cell

While running a single-cell GUI application that repeatedly changes and refreshes its content I got this message: There was not enough memory to display a cell... I found in this old MathGroup thread ...
5
votes
0answers
159 views

List(Log)Plot with "high" resolution results in various warnings, e.g. BinCounts::step

Here is some very odd behavior from ListLogPlot. So if I want to plot a function using LogPlot, I can specify the ...
5
votes
0answers
524 views

NDSolve PDE, not enough boundary condition?

The PDE that I want to solve is: $$ \frac{\partial f}{\partial t} + \frac{1}{m} \left( p_x \frac{\partial f}{\partial x} + p_y \frac{\partial f}{\partial y} + p_z \frac{\partial f}{\partial z} \right) ...
5
votes
0answers
845 views

Numerically solving a system of PDEs where one function is composed with the other

I'm trying to solve the following system using NDSolve: $$ \begin{align} u_t(x,t) &= u_{xx}(x,t) - v(x,t) \\ v_t(x,t) &= u(v(x,t),t) \end{align} $$ with $...
4
votes
0answers
93 views

How to use NDEigenvalue to accurately estimate functional determinants?

Goal: Ultimately, I would like to find a trustworthy approximation for the ratio of the functional determinant of two differential operators using the formula $$ \frac{\text{Det}[\hat{D}_0]}{\text{Det}...
4
votes
0answers
108 views

DynamicModule Error when assigning Nothing to variable

Assigning Nothing to a variable inside Module works as expected: ...
4
votes
0answers
747 views

ParallelTable::nopar: No parallel kernels available; proceeding with sequential evaluation

I am trying to use a the following code: ...
4
votes
0answers
74 views

possible memory problem with WatershedComponents

This could be regarded as a follow-up question to a previous post of mine (link). When I use the WatershedComponents function on a large image (about 6000 x 10000 pixels) Mathematica comes up with an ...
4
votes
0answers
201 views

Adding an attribute crashes the system?

At some point I noticed the following errors just in the documentation: And not only this one, this is not only for Manipulate, there were many others. Also the ...
4
votes
0answers
273 views

Does Mathematica know that $\small\frac{\vartheta_3\left(0,\frac{1}{\sqrt[10000000000]{e}}\right)^2}{10000000000}$ not equal $\pi$

The following is not an identity but is correct to over 42 billion digits: $$\bigg(\frac{1}{10^5}\sum_{n=-\infty}^{\infty}e^{-\frac{n^2}{10^{10}}}\bigg)^2=\pi$$ I want to check this. I tried: <...
4
votes
0answers
100 views

NIntegrate::ncvbr: How should we interpret and handle this error not mentioned in any documentation?

I have some user-defined module describing my integrand which has to be computed numerically (it's much more complicated than this but bear with me): ...
3
votes
0answers
44 views

Behavior of $MinPrecision seems to have changed between 12.0.0 and 12.1.1

I am running into a very weird bug where setting $MinPrecision to some value (in this case 200) has a very different and ...
3
votes
1answer
115 views

Is there a way to customize how many of the same warning messages are printed?

I have an evaluation inside a Paralleltable which sometimes gives me warning messages. After a certain amount of warning messages it will say: ...
3
votes
0answers
34 views

Importing notebooks with definitions that cause messages during formatting

According to reference pages, Quiet "does not quiet messages that occur during formatting", which typically is just a nuisance, but it seems to affect ...
3
votes
0answers
79 views

NMinimize: Constraints not valid, although additional constraints make it valid

The following code produces the error message "The following constraints are not valid". However, if I add the additional constraint "diam <= 3" (commented out below), it runs correctly and finds a ...
3
votes
0answers
49 views

Mathematica file corrupted with the syntax error "Spacer[{0., 0.}], Selectable -> False"

My Mathematica file is corrupted. The error says There was a syntax error on line 34457 in the file: xxx.nb. The error was:Spacer[{0., 0.}], Selectable -> False ...
3
votes
0answers
65 views

Installing R failed

To install R, I evaluated the following code Needs["RLink`"] InstallR["RHomeLocation" -> "C:\\Program Files\\R\\R-3.6.1"] and I ...
3
votes
0answers
101 views

Unable to turn off error messages using Parallelize

I am running 11.1 and would like to run NIntegrate and turn off the error message NIntegrate::ncvb but when I run the integrations in parallel, they are not being turned off. For example, consider ...
3
votes
0answers
187 views

Bug in the classification optimization algorithm for large data sets

I believe that I encountered a bug in Mathematica 12. The Classify[] function throws errors when simultaneously: The training set has significantly above $10^5$ ...
3
votes
0answers
436 views

How can I do a faster integration?

I have this part of my code, which takes forever to run. Does anybody know how to make it faster? Using NIntegrate I face error: "NIntegrate::eincr: The global error of the strategy GlobalAdaptive ...
3
votes
0answers
4k views

Failed to converge to the requested accuracy or precision within 100 iterations for NonlinearModelFit

So I have a lot of data, from the following type: ...
3
votes
0answers
86 views

Use of ContainsAny in EntityClass

The documentation page for EntityClass states that Property values in implicitly defined entity classes may make use of Quantity (and intervals of Quantity) for ...
3
votes
0answers
203 views

Differential equations in partial derivatives

I am trying to get numeric solution for equations: $$ \left\{x^{(2,0)}(u,t) \left(1-\frac{y^{(1,0)}(u,t)^2}{\left(x^{(1,0)}(u,t)^2+y^{(1,0)}(u,t)^2\right)^{3/2}}\right)+\frac{x^{(1,0)}(u,t) y^{(1,0)}(...
3
votes
0answers
97 views

EntityValue returns CharacterEncodingError

Whenever I try to use natural language-input, or even just call the EntityValue function, like in a Documentation example: ...
3
votes
0answers
57 views

Why does Kernels[] produce this error?

Most of times, on my PC, when Kernel[] is launched for the first time, produces this error: Executed again returns {}. Is it ...
3
votes
0answers
674 views

Increasing MaxPoints in NDSolve results in memory issue

I am interested in increasing "MaxPoints" in NDSolve's "MethodOfLines" in attempt to increase the resolution of the plot of the solution of linearly damped wave equation with transparent boundary ...
3
votes
0answers
394 views

"LinkOpen::linke : specified file is not a mathlink executable"

The following code runs fine if I run it interactively: ...
2
votes
0answers
40 views

JordanDecomposition not evaluating

When there are very small differences between entries in a diagonal matrix, sometimes JordanDecomposition does not evaluate and gives an error message: ...
2
votes
0answers
65 views

NSum complaining of being non-numerical

I am trying to evaluate the sum $\sum_{k,l=1}^{30}\frac{1}{(k^2+l^2+1)^{5/4}}$ so I write NSum[1/(1 + k^2 + l^2)^(5/4), {k, 1, 30}, {l, 1, 30}] but I get a message ...
2
votes
0answers
35 views

How to remove "Qt issued a fatal error: QXcbConnection: Could not connect to display"?

I'm using Mathematica 11.2 on Linux. At the end of my script, I'm adding an Export command to export my results into a pdf file. I'm receiving the error msg: Qt ...
2
votes
0answers
58 views

How to produce an error message for each argument?

I want to print a helpful message for every wrong input. How do you compactly implement a function with custom pattern constraints, default values and error messages for each argument separately? For ...
2
votes
0answers
55 views

DAE solver fails for system of coupled partial differential equations

I am trying to run the following code to solve a system of coupled differential equation: ...
2
votes
0answers
92 views
2
votes
1answer
191 views

(Numerical) calculation of nested integrals

The problem I'd like to (numerically) compute nested integrals of the type $$I(a;k) \equiv \left( \prod_{i=1}^k \int_0^\infty \mathrm{d}x_i \right) \exp \left( - \frac{1}{4a} \sum_{i=1}^k \left( x_i - ...
2
votes
0answers
56 views

Problem with stopping NDSolve after a condition is met

I'm trying to write a piece of Mathematica code that is essentially a differential equation solver that needs to take a specified function $V[t,q]$, and then numerically solves the differential ...
2
votes
0answers
78 views

Error: "Cannot set current directory" if directory name starts with tilde "~"

On MacOS, there seems to be a bug in FileNames[] when a directory starts with a tilde ("~"). Does anyone else see this behavior?: ...
2
votes
0answers
68 views
2
votes
0answers
62 views

FindSequenceFunction instantly throws an exception

FindSequenceFunction[{2, 4, 6, 7, 14, 29, 18, 5, 5, 2, 4}] SystemException["MemoryAllocationFailure"] $Version "12.0.0 ...
2
votes
0answers
77 views

Error Message for GrammarRules and GrammarApply

I have been struggling with the following issue regarding an irregularity when deploying and applying GrammarRules. Specifically, it often takes several failed attempts before the execution is ...
2
votes
0answers
39 views

DSolve 4 variables function error

Mathematica version: 12.0.0.0 I'm trying to solve 2 basic differential equations; ...

1
2 3 4 5