Version-specific issues for Mathematica 9
3
votes
1answer
94 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.
...
1
vote
0answers
64 views
How can I convert a plot to pdf or eps without errors?
Mathematica 9.0.1, Linux. I try to save a plot as a pdf. I tried four different options. In each case some errors appeared as blank space
( http://yadi.sk/d/h1koyDci4z3rc ). I also tried to save ...
3
votes
1answer
78 views
Cannot solve system of linear equation sums?
I cannot get mathematica to solve:
The problematic code:
...
0
votes
1answer
84 views
NDSolve complains about missing derivatives of dependent variables in Mathematica 9
In Mathematica 8
NDSolve[{x[t] == 1, x[0] == 1}, x[t], {t, 0, 10}]
solves fine and returns
...
1
vote
0answers
82 views
Getting MemoryAllocationFailure from NIntegrate
When numerically calculating a double integral using NIntegrate over an infinite domain (with all options at their default), Mathematica 7 calculates my integral ...
1
vote
0answers
176 views
Mathematica 9 fails to export graphics by right-click when notebook magnification is changed [closed]
When I try to export graphics as PNG, JPG and other rasterized formats using the right-click and choosing Save Graphic As..., if the notebook magnification is ...
1
vote
2answers
83 views
Reversing the ColorScheme used in an ArrayPlot and setting the font size in the color bar
I have a matrix of data that I am plotting via ArrayPlot.
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2
votes
2answers
99 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:
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5
votes
4answers
139 views
9
votes
2answers
92 views
What are Root objects with multiple polynomials?
In Mathematica 9 a new flavor of Root object with multiple polynomials was introduced. For example,
...
6
votes
1answer
63 views
8
votes
1answer
97 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 ...
40
votes
2answers
778 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 ...
12
votes
1answer
115 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 ...
8
votes
2answers
134 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:
...
11
votes
1answer
115 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 ...
13
votes
3answers
712 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 ...
1
vote
0answers
71 views
TableForm behavior change
In an older version NoteBook, I was able to specify some options for TableForm, which enabled
the printing of an expression in a simple fashion:
...
8
votes
1answer
127 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 ...
5
votes
0answers
98 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 ...
2
votes
0answers
63 views
List of supported units in Mathematica 9 [duplicate]
Is there a list of supported units in Mathematica 9 documentation? I personal haven't found any; even the physical constants (newly supported as units in 9) can only be found in compatibility ...
6
votes
1answer
211 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 ...
4
votes
1answer
74 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 ...
10
votes
1answer
183 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 ...
4
votes
0answers
116 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 ...
2
votes
0answers
204 views
ItoProcess for stochastic reaction-diffusion equation
I am trying to simulate a stochastic differential equation in time and space, but I'm unsure if this can be done in Mathematica. The sde that I would like to study is:
$$
...
6
votes
0answers
100 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 ...
0
votes
0answers
83 views
NDSolve divergence in Mathematica 9
I have been working with Mathematica 7 and 8 to numerically solve partial differential equations by MethodOfLines of NDSolve. ...
4
votes
2answers
125 views
1
vote
0answers
70 views
Opening notebooks from Mathematica 6 in Mathematica 9 without re-evaluating
I have many lecture notes that are originally coded and programmed using Mathematica 6.1. However since my school provides me with Mathematica 9, I notice that certain codes have been modified. Is ...
0
votes
0answers
54 views
Autocomplete short symbol names in non-global context
Is it possible in v9 to autocomplete the short symbol names when one is operating in a context other than Global`? I.e. after evaluating the following:
...
9
votes
3answers
311 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 ...
9
votes
2answers
135 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 ...
0
votes
0answers
81 views
Command completion in Wolfram Workbench 2 vs command completion in Mathematica 9
I don't have access to Workbench 2, but I tried a trial version of Mathematica 9. On reading about the features of Workbench 2, I found that it also supports code completion. I am looking forward to ...
4
votes
0answers
77 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 ...
2
votes
2answers
174 views
Weird NDSolve behavior with Piecewise (MMA9)
NDSolve in Mathematica 9.0.0 (MacOS) is behaving strangely with a piecewise right hand side. The following code (a simplified version of my real problem):
...
1
vote
0answers
143 views
Is this a bug in ListPicker?
I use Mathematica v9.0.1 Home Edition. I recently modified some code to take advantage of the ListPicker Manipulate control (new ...
17
votes
2answers
366 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 ...
4
votes
0answers
110 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:
...
10
votes
1answer
113 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:
...
24
votes
0answers
390 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 ...
1
vote
0answers
86 views
How to activate the collapsed template list on V9
Is there way to activate the collapsed template list?
By "collapsed template list", I mean the little arrow which appears when ones types the name of an built-in function, as shown on this video.
...
10
votes
7answers
342 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, ...
1
vote
0answers
134 views
Slow Mathematica startup
since Mathematica V8 the startup time is very long and somehow the complete GUI seems to freeze at the startup for approximately one minute. This happens on both of my computers, where one is running ...
1
vote
0answers
61 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
votes
0answers
117 views
Infinite computation in Mathematica 9
I just installed Mathematica 9 on Windows 8 64-bit. When I run it and try to execute commands, the first command works perfectly, but the second and further commands don't work. There is no completion ...
24
votes
2answers
500 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 ...
10
votes
1answer
109 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 ...
14
votes
1answer
417 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 ...
8
votes
1answer
104 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.
...
