Questions tagged [warning-messages]

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1 vote
1 answer
59 views

Replacing Terms of a Table of Functions

I define a table of functions, and I receive and error when I want to change a term of the table. As a minimal example, I can give the following. ...
6 votes
1 answer
328 views

DSolve: unable to solve the conditions

I have a second order differential equation with $2$ boundary conditions and want to use the following code to solve it: ...
2 votes
0 answers
76 views

Can I get the error message to be printed only once?

When an error occurs, most of the messages are output once. However, sometimes a message is output multiple times. Plot3D[x + y, {x, -1, 1}, {y, 1, 1}] In this ...
0 votes
1 answer
117 views

Fitting data to a nonlinear model and avoiding warning

I have a complicated model and I want to fit it to my data. I used NonlinearModelFit. The fit quality is very poor (P is infinitesimal) and it comes with a warning ...
1 vote
2 answers
81 views

How to change a value in an association in a list for Cellular Automata project?

I'm trying to change a value in an association in a list. This is part of a larger project of creating a function that can mutate a 2D Cellular Automata several times to make it look like another 2D ...
0 votes
1 answer
157 views

ParametricPlot3D with variable plot limits

I would like to use ParametricPlot3D in the following general way: ParametricPlot3D[\[Sigma][u,v],{u,0,2Pi},{v,-f[u],f[u]}]. ...
1 vote
1 answer
42 views

How can I fix NIntegrate::inumr warning message?

I have this code: ...
2 votes
1 answer
126 views

NDSolve: how to solve "ndnum error"

I have a problem of finding the shape of a current. please see the details here NDSolve does not accept the boundary condition I wrote a code but it gives the "ndnum" error. I tested the ...
1 vote
0 answers
44 views

Unexpected recursion when enumerator (like Table) uses variable also non-atomically in value list

Consider expression Table[k, {k, {a, b, k}}] which correctly evaluates to {a,b,k}. The duplication of the enumerated variable <...
0 votes
0 answers
40 views

Error message in "Copy As Graphics Expression" of graph

Evaluate the following code: Graph[{{1, 2}, {2, 3}, {3, 1}}] Then right-click the graph and choose ...
1 vote
1 answer
43 views

How do I use Check with Table to skip results that contain error messages

I want to run an iteration where at each step I check whether I obtain an error message, and if I do, I want to not store that result and move on to the next iteration instead. Here's an example of ...
1 vote
0 answers
108 views

Save as custom folder in menu bar in 1 step

I found the solution for myself. For some reasons I decided to write the updated content(=solution) at the top. One important reason is.. that you almost don't need to read after the solution. ...
2 votes
1 answer
75 views

Why can't I assign upvalues to NonCommutativeMultiply?

I'm trying to define a non-commutative product with respect to which, certain quantities (e.g. numbers, and some other quantities defined in my code) behave as "scalars" and can be pulled ...
0 votes
1 answer
93 views

Command to press a button

Under normal circumstances, giving a command to press the Button is stupid. Because we only need to execute the button action of that ...
0 votes
0 answers
39 views

Button with a certain built-in function makes error [duplicate]

Note that if I execute NotebookSave[InputNotebook[], SystemDialogInput["FileSave", "C:\\myfile.nb"]] will popup ...
0 votes
0 answers
33 views

Is there a way to make Off[General::stop]'s effect only applied to some messages?

After Off[General::stop] it seems all kinds of messages start to print for as many as it need to. Is it possible to limit its effect to a selected set? https://reference.wolfram.com/language/ref/...
1 vote
1 answer
151 views

Smooth numerical integration of oscillatory integrand

How can I evaluate these integrals to get a smooth outcome for the ratio, preferably without any errors? I'm trying to integrate this: ...
0 votes
1 answer
53 views

NDSolveValue::ntdvdae and NDSolveValue::icfail while solving system of PDEs

I am trying to solve a system of PDEs, but I get the error NDSolveValue::ntdvdae: Cannot solve to find an explicit formula for the derivatives. NDSolve will try ...
4 votes
1 answer
125 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 ...
0 votes
0 answers
57 views

NDSolve::derlen: The length of the derivative operator Derivative[1,2] in (y^(1,2))[x,z] is not the same as the number of arguments

This is a part of my code, where this error is showing. What is the mistake? ...
11 votes
2 answers
4k views

The front end encountered an error while processing a "NotebookPredictions" packet

I occasionally get the error The front end encountered an error while processing a "NotebookPredictions" packet. I cannot find any documentation for this error message online. It does not seem ...
0 votes
1 answer
64 views

Coordinate variable type error

I'm trying to implement a simple algorithm for curve subdivision, using a function with an input of an array of points to generate another array of new points and then putting them all into a new ...
0 votes
1 answer
49 views

Startup error messages GridCreationSettings

I've looked for a solution, but couldn't find one. I've reinstalled,but still get the following two (related) messages on startup: The specified setting for the option GridCreationSettings, Columns ...
3 votes
1 answer
84 views

Turning messages off does not work with an assigned symbol

Why does the following code not turn off the message Sin::argx? foo = Sin; Off[foo::argx]; Sin[4,5] If I try ...
1 vote
1 answer
66 views

Syntax::sntxf when using ItoProcess

The following code gives an error message Syntax::sntxf. What is wrong with my code, and how can I fix it? ...
0 votes
1 answer
194 views

NDSolve unable to find initial conditions that satisfy the residual function within specified tolerances

I'm trying to solve a set of differential-algebraic equations with boundary conditions: $A\frac{d^2\psi}{dx^2}=[c_{F}-2c_{D}(x)+c_{C}(x)]F$ $c_{D}(x)=0.1\exp(-0.2253 - 76.5596\psi(x) - 1.1149)$ $c_{C}(...
7 votes
1 answer
235 views

Are there any errors that are not controlled by Quiet?

I believed that using Quiet, all message output would be controlled. Quiet@Plot3D[x, {x, 1, 2}, {y, 1, a}] Quiet@ContourPlot[x + y == 1, {x, 1, 2}, {y, 1, a}] ...
0 votes
0 answers
67 views

Help implementing Lagrange inversion

I'm attempting to find the coefficients of generating functions using Lagrange inversion. I am finding the series coefficients with: ...
0 votes
2 answers
112 views

FermionSpinSum: encountered a fatal problem and must abort the computation

While running my teacher example using Feyncalc and FeynArts 3.10, I encounter this warning from Mathematica ...
1 vote
1 answer
70 views

Animate function error

I'm new to Mathematica and I'm trying to plot a interactive graph of a curve with a slider that shows the tangent to the curve in whichever point of the interval, my implementation is ...
1 vote
1 answer
150 views

Newton Raphson 0th order with gauss elimination error

I'm trying to do a Newthon Raphson with 1st order continuation to solve a problem with 4 variables (fix 2 and obtain the results of 2 (x and Chi). ...
2 votes
2 answers
164 views

Newton Raphson with continuation error

I have here an algorithm to solve multivariable nonlinear systems using the Newton-Raphson method with continuation. However, there is some error in the code that I am unable to identify, causing it ...
1 vote
1 answer
180 views

Gauss elimination with pivoting error

I am attempting to write code for Gaussian elimination with pivoting. I need my code to be able to find the maximum pivot in the column and swap the rows to ensure that the first element is always the ...
2 votes
1 answer
90 views

Mathematica thinks that an initial condition is a boundary condition

I would like to solve the following reaction-diffusion problem in Mathematica using NDSolve: ...
3 votes
1 answer
373 views

Sum works with 1000000, fails with 2000000 - bug?

Consider the following: ...
1 vote
1 answer
160 views

PlotLegends` and VectorAnalysis is now obsolete on Mathematica v 12.0.0.0 Home edition [closed]

My code was working a few months ago. Now I receive the messages: ...
1 vote
2 answers
685 views

Error Message NIntegrate: "The integrand ... has evaluated to non-numerical values..."

When running the following code, I get the error message that "NIntegrate::inumr: The integrand ... has evaluated to non-numerical values for all sampling points in the region with boundaries {{0,...
2 votes
1 answer
97 views

Difficulties in solving a system of differential equations with a matrix differential equation

I'm trying to solve a system of differential equations that looks like this: ...
4 votes
0 answers
210 views

Newly installed Mathematica Message[$ConfiguredKernels::obso] is Protected error?

I installed Mathematica 13.3(My $Version result is "13.3.0 for Microsoft Windows (64-bit) (April 11, 2023)" and I use ...
5 votes
3 answers
273 views

Plotting Incidence function of the SIR Model

I am working on the SIR model and I am trying to plot the incidence function on a specific time interval. ...
8 votes
1 answer
242 views

How to automatically install FFmpeg without an error

When I try to export a list of images as an AVI file, I get this message: When I select "Install FFmpeg", this message then pops up The community post is hard to follow, and the images ...
2 votes
2 answers
807 views

What causes the warning "The dependent variable in the boundary condition needs to be linear" when using NDSolve?

V 12.1.1 on windows 10 Why the following works ...
1 vote
1 answer
96 views

Replacing warning message with custom text

I am using the following code to determine the maximum of a function: f[x_] = Log[3/10, 3 - 2 x - x^2] xr = FunctionDomain[f[x], x] Maximize[{f[x], xr}, x] As the ...
-1 votes
1 answer
44 views

Finding parameter range of inequation with no solution

Let the solution set of the following inequation $$6 k - 2 x + k x^2 < 0, \quad k \neq 0$$ be an empty set. How can I find find the range of parameter $k$? The following code gives an answer: ...
4 votes
6 answers
323 views

How can I fit a set of points to the form $y = a(b-x)^c$?

I have a list of points $(x, y)$, and I expect them to be related as $$y = a(b-x)^c,$$ where $a$, $b$, and $c$ are unknown constants. I also know the approximate values of constants, which can be used ...
0 votes
0 answers
87 views

PolynomialGCD::lrgexp when integrating

I want to calculate the exponential in the last line of the following code, but the code never completes and just produces errors about PolynomialGCD. ...
0 votes
0 answers
80 views

Accuracy or precision issues with this code

I'm experiencing issues with the code below (this working code solves the Tolman-Oppenheimer-Volkoff (TOV) equations in general relativity, for the hydrostatic equilibrium of a spherical star). ...
1 vote
1 answer
111 views

Finding the maximum of a non-linear function symbolically

I have the function $$f(x,\alpha) = x^\alpha - \frac{x^2}{2}$$ where $x>0$ is the main variable of interest and $\alpha \in (0,1)$ is the parameter of curvature: ...
2 votes
1 answer
178 views

How to remove an apparent singularity in NDSolve?

I'm trying to numerically solve two coupled differential equations using NDSolve. The following code works, except that I had to remove a starting point singularity at $r = 0$ by adding an arbitrary ...
10 votes
2 answers
482 views

What should I make of "Simplify: Time spent on a transformation exceeded -4.03955*10^12 seconds"?

Running version "12.0.0 for Microsoft Windows (64-bit) (April 6, 2019)", in case that matters. I fed Mathematica the command ...

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