Questions tagged [warning-messages]

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6
votes
0answers
26 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: ...
1
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2answers
78 views

Maximize: x in Vectors[5, R] is not a valid variable

I am learning how to do optimization with a variable number of variables in Mathematica. I tried to write one experiment that I need to do but I have failed to get even a stripped-down version working....
0
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0answers
37 views

Part::partw: error in Custom Spline Algorithm

I am attending a Calculus course where we use Wolfram as a supporting tool, and I was trying the algorithm provided for Spline interpolation and I get the error in the picture: ...
4
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1answer
45 views

Looking for an explanation of unusual behavior in Divisors[] function

I have defined the function that counts the number of square divisors of input integer x. The function is ...
0
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0answers
23 views

Problem with Help (i.e. ?Log, ?Plus, etc.)

I am running Mma Home Edition, on Mac OS X Version 10.10.5 (MacBook Air). I restarted my system and now "?" does not work! Here is some sample output: ?Log (I entered this, and got the ...
0
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1answer
43 views

Invalid comparison in Manipulation with Stepwise function

I want to draw a graph of the function that I specified using Piecewise. Though I can draw a graph, I keep getting errors saying invalid comparison with -xx + yy i attempted. The followings are my ...
3
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2answers
61 views

Coupled PDE with nonlinear coefficients: Changing step size to fix large errors?

After help from user @xzczd I was successful in getting Mathematica to numerically solve my PDE (as you can see in this question). When I give realistic parameters for my differential equation, I see ...
3
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0answers
41 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
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1answer
247 views

DSolve can't solve DSolve[f'[x] == InverseFunction[f][x], f[x], x]

Here is the code I tried. DSolve[f'[x] == InverseFunction[f][x], f[x], x] The pop-up message is DSolve::dvnoarg: The function f appears with no arguments. But I ...
0
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0answers
39 views

Fixed Step Size in NDSolve

I'm trying to solve this system with a fixed step size of 0.1, ...
6
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1answer
66 views

How to make Mathematica only output the error name, rather than the full error message?

For example, when I use LinearSolve, an error message might be encountered: ...
8
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0answers
166 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 ...
0
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0answers
79 views

Error in Monte Carlo simulation. Now Random walk (dotted curve) doesn't fit to the analytical curve (dashed curve)

I've been trying to code a kinetic monte carlo simulation for a system of consecutive chemical reactions using a fixed (repaired) code that the user flinty gives me in the last questions I post: ...
3
votes
1answer
69 views

NDSolve Inconsistent equation dimensions

I am getting an error while trying to solve for a differential equation. It is saying "NDSolveValue::femper: PDE parsing error... Inconsistant equation dimensions." I was wondering if anyone ...
0
votes
1answer
32 views

How to stop NIntegrate from throwing slwcon error on integrals with Heaviside theta/step functions?

The following code throws two errors (slwcon and eincr): NIntegrate[y x^2 HeavisideTheta[5 - x - y], {x, 0, 10}, {y, 0, 10}]. Is there are "good" way to ...
0
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0answers
34 views

WolframKernelException: Failed to communicate with kernel

I am an absolute beginner of Mathematica!! .. I have downloaded, installed and activated the wolfram engine (12.1) on Windows. I have installed the WolframClient and kernal location is in kernelLoc = '...
0
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0answers
20 views

Getting MatrixPropertyDistribution::sclrvctr: error from documentation example

I'm new to StackExchange, but I am having a strange error using just downloaded Mathematica 12.1.1.0 (Student version). I'm trying to use the MatrixPropertyDistribution function, but Mathematica gives ...
-1
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1answer
29 views

Accessing Elements in a nested list

I have nested list of the form: (which I don't want to flatten :) ) lol = {{"hello", "bye", "bye", "Hello"}} How do I ...
0
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0answers
39 views

Solve::nsmet error message while trying to find symbolic solution for equation

I would like to solve several equations for x and I'm looking for symbolic solutions. The later ones might have some rather difficult or no result at all, but I ...
0
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0answers
95 views

Why the following set of ODEs is not integrated?

Consider the following dataset: ...
0
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1answer
45 views

How to turn on all suppressed error messages

I have a variety of possible errors in each iteration of a for loop. If, in one iteration of the loop, there are more than 3 error messages of the same kind, I am happy that the rest are suppressed. ...
0
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0answers
55 views

An option must be a rule or a list of rules - error

I want to plot the following code, in 1D. However, code displayed below is not being plotted; no results or errors are displayed ...
1
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1answer
51 views

Correcting error messages emitted by ListPlot

I have an assignment to use Module and in which I have to implement: The input of the program are a list of numbers and a list of strings Check whether every ...
1
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1answer
24 views

Error: Root::npoly: not a polynomial in #1 [closed]

I have a $45\times 45$ matrix $H$ and its elements depend on $Ca$. I want to find its eigenvalues (which will also depend on $Ca$). I do this using: ...
1
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1answer
32 views

Issue with transferring list with different length to excel

I have two lists with different lengths and would like to transfer them to excel with the titles "Normalx+" and "Normaly+" respectively. I am using the following script, although ...
1
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0answers
44 views

Numerical Definite Integral of Numerical Laplace Transform

I'm having problem taking the numerical definite integral of a numerical Laplace transform that depends on two variables due to NIntegrate:inumr errors: ...
1
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1answer
111 views

How do I skip to the end of a loop when a compiled function yields an error?

This is something of a follow-up to my question In an iterative process, how does one simply bypass a step producing an error? which I have been so far (thick-headedly) been unsuccessful in ...
0
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1answer
142 views

I have just begun to use mathematica and was hoping someone could help me understand these error codes

" I have an assignment where I am required to use bisection or false position method depending on various inputs and I think I have a reasonable code that should work but I am not sure why I keep ...
1
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0answers
49 views

Problem with Region Intersection

I have two regions defined as ImplicitRegion[]. ...
2
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1answer
78 views

How to implement an “if an error occurs”-condition in Mathematica programming?

In general Mathematica may return a value even if NDSolve has run into error. A simple example is ...
0
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1answer
49 views

'x' occurs twice in a nested scoping construct, in a way that is likely to be an error

I am defining the following innocent looking function (which defines a linear function passing through two given points): ...
3
votes
1answer
106 views

Why does FindInstance take so long: It is faster with more restrictions than with less?

A support case with the identification [CASE:4347836] was created. I just noted this little puzzle on twitter by Brillant.org: \begin{align} A B C\\+ BCA\\ = CDE \end{align} Given that $A$ is even ...
2
votes
2answers
55 views

Evaluation Control for interpolating functions

I would like to find the root of the third component of an interpolating function, here e.g. a BezierFunction p: ...
1
vote
1answer
327 views

Solve equation: Exponent is out of bounds for function PolynomialGCD

I am trying to solve the equation below but it returns this error :Exponent is out of bounds for function PolynomialGCD". I would be gratuful if you someone help to solve this equation. ...
3
votes
1answer
574 views

Two problems with NDSolve when using Method -> Projection

I tried to solve a system first order differential equations together with a constraint equation. I use the Method -> Projection to check if the constraint holds ...
0
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0answers
29 views

After any execution temporary error comes out ,How to fix error in temporary directory

how can I repair this error that started to come out of nowhere, I have not made any changes in the equipment but mathematica accuses that error ...
0
votes
0answers
35 views

Nintegrate providing results much smaller than what is expected

This is the first time I am posting something here. So, apologies if I make any mistake. I am dealing with a numerical integration in Mathematica-11.0 that has a Bessel function in it. In order to ...
10
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5answers
263 views

Overflow with NDSolve

Backslide introduced in 10.0, persisting through 12.1. I am trying to solve the following differential equation and plot the result: ...
1
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0answers
32 views

NDSolve w/ vector-valued function doesn't work with addition of outside function?

I'm trying to use Mathematica to solve a problem of orbits, specifically solving for the trajectory of a spacecraft moving near the Earth and Moon. I assume that the Earth is fixed at the center of ...
4
votes
1answer
53 views

Nonlinearmodelfit with integral or nintegral as constrain

Until now I have been using the Nonlinearmodelfit without any issues, but I want to add a new constrain (Integral or NIntegral) to my modelfit. My fitting function is ...
1
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1answer
78 views

NIntegrate::slwcon, NIntegrate::eincr and NIntegrate::inumri

I have the following code to evaluate the double integral of which the integrand contains summations. ...
3
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0answers
27 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 ...
1
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1answer
85 views
6
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1answer
77 views

how to obtain all Messages for Mathematica build-in functions?

Help says Messages[symbol] gives all the messages assigned to a particular symbol. These are called message identifiers per help: Message names always consist of ...
1
vote
2answers
189 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 {{0,0....
4
votes
4answers
274 views

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