Version-specific issues for Mathematica 9
41
votes
2answers
798 views
Is it possible to improve Mathematica's auto-completion feature?
In this answer Brett Champion describes how one can intercept and modify the suggestions used for auto-completion.
Question: Is it possible to modify the suggestion for the automatic auto-completion ...
31
votes
0answers
896 views
Mathematica 9 cannot solve this Integral. Mathematica 8 could. Is this a bug?
I was trying to (re)calculate a problem of an older Wolfram blog post (Problem 11457, by M. L. Glasser) with Mathematica 9.0.0.0 (on OS X 10.8.2).
...
26
votes
0answers
410 views
Is it possible to customize the Suggestions Bar?
I'd like to be able to customize the Suggestions Bar in v9.0 to provide recommendations of my own. Possible example: when doing unit calculations, I'd like it to suggest converting the answer to ...
25
votes
2answers
362 views
DeleteDuplicates not deleting duplicates
It is not surprising that DeleteDuplicates[{5,5.}] returns {5,5.} because DeleteDuplicates ...
24
votes
2answers
506 views
Template completion
In version 8, if one evaluates
test::usage="test[x,y]";
then types test, then shift-cmd-k (or shift-ctrl-k), a template ...
22
votes
2answers
419 views
Documentation searches hang frequently: Anyone else dealing with this?
I've been struggling with a number of hangs, dynamic timeouts, and outright crashes when using the search/documentation center in version 9. I've tried uninstalling/reinstalling and clearing ...
18
votes
1answer
2k views
Install trial version of Mathematica 9 next to genuine Mathematica 8
This morning I installed the trial version of Mathematica 9. After I discovered that Export[] is disabled in trial versions, I wanted to use my genuine Mathematica ...
15
votes
3answers
792 views
Graphics exported from Mathematica 9 are very large because even standard fonts are embedded
I've upgraded from Mathematica 8 to 9 (which apparently leaves the old version installed and usable which I didn't expect). I see a significant difference in the size of the PDFs produced by 'Save ...
15
votes
1answer
447 views
Bug in Solve (Mathematica 9)
Just came across the strangest bug under both Mathematica 9.0.0 and 9.0.1. If one enters:
Solve[m == p Sin[x] && -Pi/2 < x < Pi/2, x]
... then ...
14
votes
1answer
1k views
Version 9 Blue Screen or Self-Test Error on Windows 7 64-bit
Update There is now an official response from Wolfram Support on this issue.
Having recently installed Mathematica version 9 64-bit on Windows 7, I keep running into Self-Test Errors evaluating ...
14
votes
2answers
310 views
Auto-completion doesn't work as my expectation in version 9.0
When I input the following line in version 8, and press Ctrl+K after Re, I can get a drop-down auto-completion list including ...
12
votes
1answer
117 views
Predictive code completion and custom functions in contexts
Suppose I work for organisation PQR, and have been developing a suite of packages, PQRUtilities, PQRVisualization etc, all of ...
11
votes
2answers
106 views
What are Root objects with multiple polynomials?
In Mathematica 9 a new flavor of Root object with multiple polynomials was introduced. For example,
...
11
votes
1answer
119 views
Upon PDF export, edgeless rectangles do not tile perfectly, and corners may be cut. Is this a bug?
Exporting the following as a PDF file
Graphics[{
{Red, Rectangle[{0, 0}, {1, 1}]},
{Green, Rectangle[{1, 0}, {2, 1}]}
}]
does not produce perfectly tiled ...
10
votes
3answers
336 views
Extract connected components from PNG image file and write to individual PNG files
Given the PNG image below with the three leaves in it, I'd like to extract each individual leaf and write it to its own PNG file, using Mathematica 9. Note that in the original image, the box bounding ...
10
votes
7answers
364 views
How to dynamically toggle curves on/off in a crowded Plot?
When multiple curves appear in a single plot, it is useful to interactively turn certain curves on or off to visually compare smaller numbers of curves. It is trivial to put a quick dynamic together, ...
10
votes
1answer
118 views
FindInstance returns Indeterminate in version 9, but not in 8
Here is a trivial system of equations in three unknowns for which FindInstance obtains a solution:
...
10
votes
1answer
158 views
How do I seamlessly migrate from the older Units package to Mathematica 9's Quantity objects?
I have several notebooks that make use of the Units package and would like to be able to work simultaneously with the older units and ...
10
votes
1answer
113 views
Multiple templates for a single user-defined function
How do I use the ::usage tag to allow the Mathematica v9 front end to know that there are multiple ways to call an overloaded function (a function that can have ...
10
votes
1answer
204 views
Simulating discrete time stochastic dynamic systems
What is the canonical way of simulating discrete time stochastic dynamical systems in Mathematica using the new functionality of Random processes?
To take a concrete example, lets consider the ...
10
votes
2answers
157 views
SaveDefinitions->True changes the displayed image
I have a Manipulate[ ] that displays an image with a superimposed Locator object. It works fine when I have ...
9
votes
1answer
115 views
How can I get LineLegend to pick up my plot's BaseStyle?
The new legends functionality in version 9 really simplifies creating legends, and it automatically picks up the styles of the lines.
...
8
votes
1answer
338 views
Mathematica 9 does not read mathematica 8 “.mx” files
Having written a lot of code on M8, I recently switched to M9 and tried to run the code on M9, the code starts by loading an .mx file written by M8, but M9 wouldn't read the .mx file saying that it ...
8
votes
1answer
103 views
Is it possible to make v9 ignore case when completing names?
In v8, I could type, say, fulls or texf to get FullSimplify or ...
8
votes
1answer
177 views
Mathematica8 can compile this function but Mathematica 9 can't if I set CompilationTarget -> “C”
Following code worked on Mathematica 8, but in Mathematica 9 it can't be compiled, it return this message
CompiledFunction::cflist: Nontensor object generated; proceeding with uncompiled ...
8
votes
1answer
129 views
in v9, backspace causes cell to become section style
In the front end of v9, in any given cell that contains content, if I hit backspace to clear the content until there is nothing left, and then hit backspace one more time, the cell becomes a ...
8
votes
2answers
143 views
Problem with NIntegrate when WorkingPrecision is specified
I am trying to evaluate this integral numerically:
$$
\int_0^{\infty } m \exp (-m) J_1(m){}^2 \, dm
$$
Everything is OK when only the integration method is specified:
...
6
votes
1answer
218 views
NDSolve and WhenEvent Causing Excess Work
When I use the following system
model = {x'[t] == x[t] (1 - x[t]) - x[t] y[t], y'[t] == x[t] y[t] - y[t], x[0] == 0.5, y[0] == 0.5}
with the ...
6
votes
1answer
68 views
6
votes
0answers
102 views
Using stateful web services with Mathematica 9
The WebServices package in Mathematica 9 no longer seems to support stateful web sessions. This requires the client (i.e., the WebServices package) to pass back the HTTP Cookies that it receives from ...
6
votes
0answers
115 views
Break[] inside ColorFunction
f[x_?NumericQ]:= (Do[Break[],{i,1,2}];x)
Plot[x,{x,0,1},ColorFunction->(ColorData["Rainbow"][f[#]]&)]
Break::nofwd: No enclosing For, While, or Do found ...
5
votes
4answers
144 views
5
votes
0answers
58 views
Exporting large numbers in WDX format
I have a list of 10 000 3×3 matrices in Mathematica. The entries are rational numbers. I would like to write this to a file so I can load it again in the future. After some fussing with file formats, ...
5
votes
0answers
104 views
Quantity and Trig functions
I have a bunch of data to which I've assigned units using Quantity, including some angular measurements in degrees. I'd like to be able to use these measurements ...
4
votes
2answers
374 views
How can I recreate Trott's Riemann Surface plot in Mathematica?
In reading Michael Trott's Visualization of Riemann Surfaces of Algebraic Functions, he has:
...
4
votes
2answers
165 views
How to prevent the loss of Tooltip when using ListLinePlot?
Version 9, windows 7:
When I use ListLinePlot Tooltip does not work any more. It seems to have been lost somewhere. With same data, Tooltip works ok using ...
4
votes
1answer
116 views
Accessing the Data of an RLink RDataFrame
I am trying to extract the data table itself from an RLink-generated RDataFrame:
...
4
votes
1answer
82 views
How can I monitor and detect when a website has changed?
I'd like to detect when a website has changed, in particular when new products are announced on a site that doesn't change to often. Here's the code I wrote but I don't think it is perfect. Also the ...
4
votes
1answer
118 views
Row inside FrameLabel doesn't work in Mathematica 9
So as to automate/customize plot titles I use Row inside e.g. FrameLabel:
FrameLabel -> {"x", "y", Row[...]}
Now with ...
4
votes
2answers
138 views
4
votes
1answer
115 views
Does new MMA9 Time Series support obsolete the old TimeSeries Package?
MMA9 includes a fair number of functions and symbols that seem to overlap with the old TimeSeries package. The new features are documented here and the old material is documented here. Some of the ...
4
votes
1answer
154 views
Where is the “Insert > Citation> Bibliographical Reference” Command?
I don't have the command for inserting citations described in the documentation: "Insert > Citation> Bibliographical Reference" is not present in my menus:
That's the entire contents of my ...
4
votes
0answers
118 views
Strange result from evaluating a Limit expression
When I evaluate the limit of (1-Cos[x]) Sin[1/x] at x = 0 in Mathematica 9, I obtained ...
4
votes
0answers
83 views
Some memory issues with In, Out and HistoryLength
I was trying to say something useful here
Debugging memory leaks
but I got very confused. Can somebody please confirm that the following will cause a big gap between the allocated memory you start ...
4
votes
0answers
114 views
Version 8.0 integrates but Version 9.0.1 doesn't
I am trying to run the following integral in version 9.0, but it fails:
...
3
votes
1answer
137 views
Using external variable as a variable inside WhenEvent & NDSolve
I'm trying to use the new WhenEvent functionality of NDSolve in Mathematica 9, in order to perform an action when a variable in the system reaches a certain value. I would like this variable to come ...
3
votes
1answer
115 views
Evaluating double Integral
While trying to evaluate the integral $\int_{y=0}^{x_2}\int_{x=0}^{min(x_1,y)} n (n - 1) (1 - y)^{(n - 2)}dxdy $ , Mathematica does not seem to yield any results.
...
3
votes
1answer
86 views
Cannot solve system of linear equation sums?
I cannot get mathematica to solve:
The problematic code:
...
3
votes
0answers
43 views
How to influence Suggestion Bar in your package/code [duplicate]
Possible Duplicate:
Is it possible to customize the Suggestions Bar?
I have written a little code (like a minipackage) of different functions. In using my code, the user typically starts ...
2
votes
2answers
109 views
Why do Plot and ListPlot use the last PlotStyle when only one thing is plotted?
When a list of PlotStyles is given, ListPlot behaves as expected when there are multiple things to plot:
...
