Mathematica

tilde or subscript in variable name?
Hi, I want to write a package and have some public variables name like what would be in TeX \tilde{m} xyz_{w} Is this allow in Mathematica and how could I realize it? If I use the tilde or subscript notation in an Array declaration, I get the following: .... Subscript[j0, min]::usage is not of the form ... 27 Feb 2010 03:25

Using tilde in symbol name
Hi, I'm just starting to write my first package in Mathematica 7. Now I want to have an Array named \Overtilde[m]. How can I get this to work? Is it allowed at all? I also would like to have a symbol \Subscript[j,x]. Are these names allowed at all and how can I realize them if yes? To say it once more in oth... 1 Mar 2010 09:09

apparently simple graphic won't print when SaveAs[] PDF
Hello mathGroup: These 3 commands are taken directly from the help page for Zernike[]. r2c[e_] := Simplify[TrigExpand[e] /. {Sin[\[Theta]] :> y/r, Cos[\[Theta]] :> x/r} /. r^n_ :> (x^2 + y^2)^(n/2)] zPlot[e_] := With[{f = r2c[e]}, DensityPlot[Cos[2 Pi f]^2, {x, -1, 1}, {y, -1, 1}, RegionFuncti... 15 Mar 2010 06:47

CONDITION/DATA ANALYSIS/PLOTS
I am currently having trouble achieving something on mathematica and I would greatly appreciate your help. My problem is the following: I want to construct a loop that will read data and when data<0.1, put it data in a list and do so until data>0.1. the problem is the data fluctuates and i have kind of sinusoidals... 5 Mar 2010 05:02

Autocalibration for camera
I would like to know if anyone in this group has written Mathematica code for the automatic calibration of a camera using bundle adjustment. Thank you, --V. Stokes ... 27 Feb 2010 03:25

ListLinePlot with null value
Hi, all, I'm new to Mathematica and would really appreciate it if you can help. I want a plot with quadratic spline interpolation. But I have missing data indicated by "null" and the output turns out to be straight lines joining the dots. Is it possible to have quadratic spline interpolation with missing value... 2 Mar 2010 08:57

Problems with ChoiceDialog inside a Dynamic: Bug or not (well) documented limitation?
Thank you Adam! Problem solved! I would like to propose two improvements in the Documentation Center: the first is to add the possibility to add custom comments in the functions/commands help pages (where to store, for example, the suggestions, like this, found in the user group, some personal sample code, e... 26 Feb 2010 04:09

Programmatically saving myself
Hello all, How can I get a notebook to programmatically save itself at controlled locations? I don't want to use the NotebookAutoSave property because that saves the notebook everytime a cell produces an output. I want more control over when the notebook save itself. Ideas? ... 3 Mar 2010 06:14

Problems with ChoiceDialog inside a Dynamic: Bug or not (well)
Hi, suppose you wanna to display an alert to the user before to continue the execution of your code when some conditions occur : probably you'll use ChoiceDialog[], the useful function that "puts up a standard choice dialog that displays expr together with OK and Cancel buttons, and returns True ... 4 Mar 2010 05:35

auto-save in Mathematica
Hello Guys, My system crashed and I lost 4 hour of coding, how to setup auto-save in Mathematica. thanks in advance, Eric ... 7 Mar 2010 05:15