For questions specific to Version 8 of Mathematica.

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18
votes
1answer
699 views

Transparent textures don't show

EDIT For now, I'm going to accept Brett's answer. It's a way to get transparency back by having 3D calculations done in software instead of hardware. It addresses the symptoms but not the ...
13
votes
3answers
439 views

Undocumented syntax of FilledCurve [duplicate]

Possible Duplicate: Undocumented form for FilledCurve[] A nice trick to get the outline paths of letters is to use the PDF exporter/importer ...
22
votes
2answers
333 views

eigenvector bug?

I have a fairly simple $3\times3$ complex matrix, $$ M=\left( \begin{array}{ccc} \frac{7}{2}-\frac{i}{2} & -1+i & \frac{1}{2}+\frac{5 i}{2} \\ -1+i & 5+i & -1+i \\ ...
18
votes
3answers
696 views

Clipboard with transparency

After reading this question I have determined that Rasterize[Graphics[Circle[]], "Image", Background -> None] allows you to do ...
16
votes
4answers
1k views

Printing exported PDF graphics fails (version 8)

When I export even simple graphics, say, a DateListPlot to PDF under Windows, it refuses to print on any of the printers at work. Acrobat (Reader X) throws three ...
9
votes
1answer
326 views

LogPlot axes labels destroyed when working in high precision

(I'm using Mathematica 8.) I have a Taylor series: poly = Normal[Series[E^x, {x, 0, 10}]] I want to produce a log-linear plot of the error. This is easy enough ...
11
votes
2answers
415 views

backward compatibility

When producing or enhancing code, it is tempting to use recent new primitives of Mathematica introduced in version 7 and 8, but for library code or in preparation or future version change in ...
4
votes
1answer
171 views

Can't simplify Abs[a*Cos[x]]^2

Why doesn't FullSimplify[ Abs[a*Cos[x]]^2, Assumptions -> {{a, x} ∈ Reals}] simplify to (a*Cos[x])^2 but this query ...
15
votes
3answers
225 views

What is the most convenient way to change options for Graph[] objects?

What is the most convenient way to change options such as VertexLabels in existing Graph objects? (Version 7 users note: ...
8
votes
0answers
184 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 ...
24
votes
0answers
561 views

What calendar is Mathematica using for dates in the distant past?

It appears that Mathematica treats all dates as proleptic Gregorian dates by default, a hypothesis that can be easily tested by using AbsoluteTime to compute the ...
15
votes
2answers
571 views

Command Completion

Note: As of version 9, this functionality is available and works out of the box. I've a few questions about Command Completion in Mathematica. I recently discovered this feature, and it's really ...
5
votes
3answers
228 views
4
votes
1answer
302 views

A Graphics`Mesh`ConvexHull[] peculiarity

I have been unable to explain the behavior of Graphics`Mesh`ConvexHull[] on the following (highly simplified) example: ...
15
votes
1answer
325 views

Why does LogLinearPlot sample its argument outside the specified domain?

I experience a weird bug in the function LogLinearPlot. If the input is an interpolation function, such as the one created like this, ...
8
votes
2answers
123 views

Alternative to NotebookLocate or NotebookFind

In Mathematica 8.0 and older, there are two ways to select cells based on cell tags. NotebookLocate["CellTag"]; NotebookGet[EvaluationNotebook[]] and ...
5
votes
2answers
719 views

Wavelet Packet Transform in Mathematica 7 and 8

For finding location of spikes in a time series I used to transform the data into wavelet space using DiscreteWaveletPacketTransform [ data, filter, 0] and then ...
4
votes
1answer
235 views

Plot an undefined function

When I plotted an undefined function, Mathematica also spends considerable time to process it. It returns a blank figure necessarily. What confuses me is where the ...
3
votes
1answer
148 views

Create a color bar plot legend

I have the following list of parametric equations lst = {10*Cos[u]*Sin[v], 3*Sin[u]*Sin[v], 2*Cos[v]}; I define the following color function ...