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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2
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0answers
83 views

StringMatchQ error messages printed to console while main notebook is sitting idle [duplicate]

Possible Duplicate: Strange ::usage behavior in v9 I'm currently finishing up a Mathematica vector calculus package (MMA9.0 on Mac Os X), but have had a persistent problem that I haven't ...
2
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1answer
414 views

Inconsistent initial and boundary conditions

I have a 4th order nonlinear PDE with the following BCs and IC: ...
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1answer
2k views

How do I troubleshoot when I get a Part::partd or a Part::partw error?

Mathematica has produced the following error message: Part::partd: Part specification ... is longer than depth of object? What is partd? I think I may ...
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1answer
705 views

How to find local minima of a multivariate function with singularity?

I am working on a logistic regression problem which requires minimizing a cost function J[{theta0, theta1, theta2}, X, y] to find the optimal value for fitting ...
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1answer
287 views

Plot has red 'film', no error message

I am encountering really strange behavior: I wrote a function that plots values some data. After executing the code the resulting plot has the red 'error' colour, but only momentarily (maybe 0.1 sec). ...
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1answer
137 views

Error message: Coordinate index 0 is out of range for the enclosing GraphicsComplex

I am unable understand following error message: Coordinate index 0 is out of range for the enclosing GraphicsComplex. How to fix it? Attached data here: pts and polygons. See also end of question. ...
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1answer
59 views

Turning Off Error messages locally

I'm trying to turn Off an error in an expression. ...
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2answers
119 views

Is this integration error from a misuse of Mathematica or is it my poor math skills?

I have input this: Integrate[1, f[t]*Exp[(v/V)*t]] That is $\large\int 1*d(f(t)*e^{\frac{v}{V}*t})$ I expected this output: $\large f(t)*e^{\frac{v}{V}*t} + C$ ...
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1answer
200 views

Suppress warnings in ParallelTable

I'm using ParallelTable to evaluate a function that involves NIntegrate. There are a lot of ...
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2answers
45 views

Print argument of function that exceeds $RecursionLimit

Is there a way to print the argument of a function which results in a $RecursionLimit::reclim error? As an example, cosider the code ...
1
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1answer
51 views

Series and that old ivar error

I am trying to compare plots of the function (1+x)^{1/3} and its power series. The code for the power series generates an error message referring to an invalid variable: 'General::ivar: -1.09993 is ...
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1answer
118 views

Error when using FullForm with ?symbol

Information[symbol] shows information about a symbol and is equivalent to ?symbol. ...
1
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1answer
173 views

Bincounting a list

I'm a Mathematica novice here. I'm trying to execute the following code to add random 1's into a zero matrix, repeat this many times, and then bin/histogram the number of nearest neighbor 1s. Can ...
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2answers
150 views

Error changing edge thickness in a GraphPlot

I'm having some problems with the Mathematica graphics inspector. I want to make a graph with the following code: ...
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1answer
51 views

Warning and Errors during Compile

I defined a compiled function cf = Compile[{{x, _Integer}, {n, _Integer}}, z = (n^x); Binomial[n, #]* StirlingS2[x, #] *(#!)/z & /@ Range[x]]; and I ...
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2answers
63 views

CDF of TransformedDistribution Not Returned And No Error Message Produced

I am unable to get Mathematica to return the CDF of a distribution produced by TransformedDistribution. It "executes" for 6 hours on my machine and then returns a blank plot. Could someone execute the ...
1
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1answer
378 views

What does the Error Message in DSolve really mean?

Having this ordinary non linear differential equation $$y'-x^2 (y+1)\cdot (y+2)^2= 0$$ with the boundary condition $y(4)=2$. When trying to solve this one with Mathematica by using ...
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1answer
693 views

Plotting a complex function [duplicate]

What does it mean if this message appears: {Im[(1-E^Times[<<3>>] f)/(1-Power[<<2>>] f)]-0,Im[(1-E^Times[<<3>>] f)/(1-Power[<<2>>] f)]-0} must be a list of equalities or ...
1
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1answer
63 views

How to suppress a warning message

If I change $MinPrecision before running ListPlot[{{1, 2}}], there will be a warning in Mathematica 10. But there is no warning ...
1
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1answer
89 views

Incompatibility of Row and TeXForm

In Mathematica 7 Row and TeXForm work harmoniously: ...
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1answer
43 views

error message DSolve::“bvnul”

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1answer
93 views

FindFit::nrlnum What am I doing wrong?

I have a model called qobs: ...
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1answer
101 views

OpenSQLConnection error

I used to be able to connect to a SQL Server database. I haven't run this program for a few months. I tried it today and it failed, so I went back to try OpenSQLConnection[] and got the following ...
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1answer
297 views

Why do I get an error message when for this type of recursion?

When I type the following code: mus[] = 0; mus[x__] := First[List[x]] + mus[Rest[List[x]]] What one would think would happen is that if, ...
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1answer
94 views
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2answers
245 views

Error using Solve on Matrix Multiplication

I am trying to make a function the will find that value of $x$ in the following equation: $x.a=b$ all values of $x, a, b$ are matrices. The dimensions of $x$ are unknown, but $a$ and $b$ have the ...
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1answer
162 views

Skip one step of the loop if there is an NIntegrate::eincr message

Is there a possibility of skipping one step of a loop if in this step there appears an error like NIntegrate::eincr? After skipping, the loop should go to the next ...
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0answers
105 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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1answer
121 views

How can I pass in parameters for multiple controls to a function that returns a Manipulate?

For instance, I have a some "commands" that I use regularly, for example: ...
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0answers
70 views

Consistently annoying error messages in Mathematica 9 [duplicate]

Possible Duplicate: Strange ::usage behavior in v9 Has anyone had any issues with a function, let's call it Function, which worked in Mathematica 8 getting the error message ...
0
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2answers
90 views

Cases Message Valid Notebook Structure

Note: Spelunking will likely be needed. Execute the following. You should get back and error along the lines of First::first:... This error is unimportant except ...
0
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1answer
59 views

Problem with Label in a Do loop, “nolabel” [closed]

Can someone tell me why this code doesn't work and how to fix it ? Thanks. ...
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2answers
52 views

How to output (anything) if any error happens

I have long code which goes through iteration process. some times I get error messages. I want to get the iteration numbers (or any kind of output indications) when errors happen. for example, how ...
0
votes
1answer
2k views

Stategies to avoid NIntegrate::slwcon error

I am trying to numerically evaluate an integral whose integrand depends on two parameters, say $(a,b)$ and when $b\gg 1$ I suspect (although it's not guaranteed) that the integrand is very small. Thus ...
0
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1answer
66 views
0
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1answer
90 views

Export/Copy + Paste a plot from Mathematica Trial Version to TeX editor

I wish to get a view plots from Mathematica trial version into a TeX editor, but cannot seem to do it (unless I print the screen and crop the image which leads to bad quality). Is there a way in which ...
0
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1answer
492 views

Reassign Functions for Graphic Representation [closed]

How might I construct a function of the form Rep[defs,code], graphic[code] and display[code] ...
0
votes
2answers
67 views

Update: Interpolation error message? [closed]

I have the following data that needs to be analyzed : data = ToExpression@Import["http://pastebin.com/raw.php?i=8XKGYvSy", "Data"]; I have 6 sets of coordinates ...
0
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2answers
189 views

Plotting problem

I was wondering why I keep receiving the error message "Derivative should be a triple of numbers, or scaled form" from the following code ...
0
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1answer
320 views

Evaluating FindRoot at different starting points on a grid

I'm trying to evaluate the roots of a complex function at different starting points on a grid using Do[Do[FindRoot[g[z], {z, j + k*I}], {j, 10}], {k, 10}]. However, ...
0
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1answer
48 views

Restarting Mathematica causes an animation to fail to run [duplicate]

I've tried animating two different sets of 3D plots. Interestingly, one plot will always work, regardless of whether I restart Mathematica, yet another plot will only work in its current Mathematica ...
0
votes
1answer
40 views

Assigning a given value if a function returns an error [duplicate]

This question has to do with error handling, I guess. I am using Brent's Method in order to numerically find the root of a function. This is just an example of what I am doing: ...
0
votes
1answer
25 views

How to output local variables when error message is generated without interrupting evaluation?

I am running a calculation to generate a dataset. I use several iterations to sweep over a parameter space. A few times an error message is generated (which is not the problem per se). Is it possible ...
0
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1answer
74 views

Problems with For statement

I'm trying to iterate some expression through for loop: ...
0
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2answers
150 views

How to fix this error : SetDelayed::write: Tag Plus in (<<1>>)[x_] is Protected.?

I don't get the meaning of the sign <<>> and also from which line the error is coming as I have a program of more than 30 lines with many defined functions without using "Module" . Is not there ...
0
votes
1answer
158 views

Union::normal: Nonatomic expression expected when using Uncompress

I saved a expresion to a file like this Export["file.dat",Compress@myExpression]; Then (i don't know why) when I import the file i get the compressed expresion ...
0
votes
1answer
72 views

How to save numbers that are in Mathematica messages

I have a program that calls FindDistributionParameters and I get the Mathematica message FindMaximum::eit each time I call the function. The message is FindMaximum::eit: The algorithm does not ...
0
votes
1answer
48 views

Error about limit MaxExtraPrecision

After my evaluations I have an error: N::meprec: Internal precision limit $MaxExtraPrecision=50. reached while evaluating ... ...
0
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1answer
107 views

Problem evaluating results of DSolve (Power::infy)

So, after browsing through older posts to see if anybody else could have had the same problem, I have come to the conclusion that I am stuck. That bothers me, especially because it should be straight ...