# Tagged Questions

For questions on interpreting existing error messages that you have encountered, as well as writing and managing messages, assertions and checks for your own functions.

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Referring to the method I proposed for Problem with ParametricPlot Mathematica 10.0.2 throws an enigmatic error message: ...
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### 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): ...
311 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 ...
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### SiegelTheta fails to evaluate when given proper arguments

SiegelTheta often returns error messages when I give it arguments that should be of the correct form. For instance, I have a numerical matrix like ...
133 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 ...
158 views

### Maximizing Large Multivariable Function over Region with Parameter Constraints

Brand new Mathematica user here. I have a complicated function to maximize, and thought I would try software like Mathematica instead of taking derivatives by hand. I found some Mathematica ...
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### How to handle infeasible points in FindRoot?

I am calling FindRoot[f[x,y],{{x,xInit,xMin,xMax},{y,yInit,yMin,yMax}}] where for some points {x,y}, ...
183 views

### Export Notebook causes an INTERNAL SELF-TEST ERROR: Files2|c|1713 message

On my machine (Windows 8.1) and M10 the following two lines, that must be run on an already saved notebook, ...
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### Locate Blow-up in NDSolve with Whenevent

At some point I get this error: ...
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The following code runs fine if I run it interactively: ...
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### How can you link Parallel Mapping and Error tracking

Following this question and the comments made, together with the information in this question, the following code allows error tracking and debugging very nicely. ...
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### Understanding HoldSequence and ReleaseHoldSequence in Error Handling

I was playing with GeneralUtilities`PrintDefinitions in V10.1, and find some of native Mathematica functions using ...
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### Is there a minor bug in Neal Alexander's TopologicalSortAll[]?

There is an amazing answer to this question: All possible topological orderings of a graph By Neal Alexander. However, as user "dark blue" (I am not this user) notes: ...
105 views

### What does this Java error mean? Why is it raised?

I want to launch some kernels on a cluster that uses SGE. The server's operating system is Linux Cent-OS. According to Mathematica documentation, I've added these commands inside my code: ...
54 views

### Capturing error message information

Error messages returned from SendMessage occasionally have useful information in them. For example: ...
146 views

### Failure of CountryData due to connectivity?

Today I started researching the "Four colours theorem" and to do so I need data, regions for example. I tried using the following line: ...
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### Mathematica error code 0x00000171

I'm getting above error code with a Trap 132 indication when attempting an ArrayPlot of a complex 130000 x 2048 matrix. Using Mathematica 9.0.1 with Mac OS 10.10.3 ...
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### Is there any way to get more info on an error message?

Many times I receive messages but can't find any documentation on what it means. For instance today I got this error: ...
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### Possible bug in shallow representations of expressions in messages

I got the following message in Mathematica 10.0.2: I do not have questions about the message itself, but rather about its representation. The program was maninulating with mathematical expressions ...
53 views

### Two installations of MMA 10.0.1.0 differ in behavior

I'm seeking advice on how to track down what might cause the following difference in behavior. I have two independent installations of MMA 10.0.1.0, both on Mac OS X Mavericks on identical x86 Mac ...
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### SetDelayed::write is Protected error on Linux not PC

I have 2 computers, a PC and an Ubuntu computer both with Mathematica 10. I am running the exact file with the exact support files on both computers, but just on the Ubuntu I get the following error ...
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### Geometric Transformation not working - degenerate points?

I've successfully used FindGeometricTransformation to project the simplex triangle onto the x-y plane: ...