Mathematica

Documentation build in Workbench
It appears that Wolfram Workbench builds all of the documentation pages during a documentation build, not just the ones that have changed. Is there a way to change this behavior? Thanks, Simon ... 11 Jul 2010 07:12

Can This be Possible? A bug in Set (=) ?
The definition of Set (=) is straight forward: "*lhs=rhs* evaluates *rhs* and assigns the result to be the value of *lhs*. From then on, *lhs* is replaced by *rhs* whenever it appears." How then to explain the output of cell 4 below, when cells 1 through 5 are evaluated in sequence (but not all at once, ... 8 Jul 2010 21:26

SyntaxInfo/Notebug bug?
No surprises if I execute this in a cell: ClearAll [ g ]; SyntaxInformation [ g ] g [ x_] := x; g [ 3 ] But if I now execute this in another cell: SyntaxInformation [ g ] = {"ArgumentsPattern" -> {_, _}}; g [ 3 ] SyntaxInformation [ g ] ClearAll [ g ] g [ 3 ] Synta... 7 Jul 2010 07:56

PlotLegend-> and DateListPlot[]...incompatible or
There is an issue with using PlotLegend with DateListPlot (will be fixed in the future version). For now, you could convert data to AbsoluteTime to make it work. Needs["PlotLegends`"] data1={{{2006,10,1},10},{{2006,10,15},12},{{2006,10,30},15},{{2006,11,20},20}}; data2={{{2006,10,5},15},{{2006,10,20},8},{{2... 7 Jul 2010 07:56

plot colored ellipsoid
Hi, For some reason I cannot color my ellipsoid. I use, e.g., Graphics[{Black, Ellipsoid[{1.4, 1.4}, {1.4, 5.7}, {{-0.7, 0.6}, {-0.6, -0.7}}]}] Other graphics options like 'Thick' or 'Dashed' pose no problem, but it always comes with the standard color. any idea? Thanks ... 8 Jul 2010 21:26

The side-effects of mixing TraditionalForm inside
Actually, I think here the default -- to have the More Information group closed -- is quite reasonable. So that what you see is the brief Information output cell near the top and the EXAMPLES group initially open. I've spent a lot of time watching Mathematica beginners learn, and there's no question that most ... 8 Jul 2010 03:42

ParametricPlot3D problem
I'm trying to plot electric field lines as tubes with a parametric plot. I build a list with n points as ptsA = BuildPointList[th] where th is the angle of the field line. ptsA[[1]] is then the list of points, and ptsA[[2]], ptsA[[3]] are lists giving two vectors perpendicular to the field line at each point... 6 Jul 2010 05:42

PlotLegend-> and DateListPlot[]...incompatible or broken?
Hello MathGroup: I have this exceeding simple test case from the supplied Documentation Center (I added PlotLegend): Needs["PlotLegends`"] data1 = {{{2006, 10, 1}, 10}, {{2006, 10, 15}, 12}, {{2006, 10, 30}, 15}, {{2006, 11, 20}, 20}}; data2 = {{{2006, 10, 5}, 15}, {{2006, 10, 20}, 8}, {{2006, 11, 10}, 5},... 7 Jul 2010 07:56

Change Default Button Method
I frequently use buttons in my projects, and almost always use the Mehod->"Queued" option. Is there a way to change the default setting so I don't have to type this every time? It seems like this should be possible using a stylesheet, but I don''t know the syntax. Any help would be appreciated. Nate ... 7 Jul 2010 07:56

Copying and Pasting from a Grid with Dividers
Here is a simple Grid construction with Dividers. Grid[Array[0 &, {3, 5}], Dividers -> {{True, True, False, False, False, True}, {True, True, False, True}}] Now I would like to copy and paste a sub-matrix from the output. Let's say I select and copy the 2 row, 4 column block on the lower r... 6 Jul 2010 05:42