21,066 reputation
42568
bio website none
location Ann Arbor, MI
age 77
visits member for 2 years, 1 month
seen yesterday

I am a retired software developer. I retired at the end of 2003 and since then my computer programming activities have been for recreational purposes. I find Mathematica excellent for that.

I started using Mathematica in 1997 (Ver. 3). I am currently using Ver. 9. Although I have used Mathematica for all kinds of stuff, I use it mostly to pursue my long standing interest in Euclidean geometry, both in its classical Greek synthetic form and in its more modern analytical/transformational form.


Oct
29
reviewed Reviewed Usage of @ symbol in Mathematica
Oct
29
revised Usage of @ symbol in Mathematica
deleted 9 characters in body
Oct
29
revised RegionPlot with PlotRange vs RegionPlot with domain
replied to issues raised in comment
Oct
29
answered RegionPlot with PlotRange vs RegionPlot with domain
Oct
28
comment Importing data from files designated in an InputString dialog box
I do not think this question should be closed. It does not exhibit a trivial mistake nor will a useful answer be easily found in the documentation. This question brings up some serious issues concerning how to work with InputString and Import and how to defend against bad input from a user.
Oct
28
revised Importing data from files designated in an InputString dialog box
edited body
Oct
28
revised Importing data from files designated in an InputString dialog box
Made code more robust by adding recovery from import failure
Oct
28
revised Importing data from files designated in an InputString dialog box
edited body
Oct
28
revised Importing data from files designated in an InputString dialog box
edited title
Oct
28
answered Importing data from files designated in an InputString dialog box
Oct
27
reviewed Reopen Derivatives of functions with arbitrary number of variables?
Oct
27
comment Frontend: Adding cell-type choices to the “Choose how to enter input” drop-down
@rdjain1. If you are willing to accept the shortcuts as assigned, you won't need to define a new stylesheet, but if you want to change the assignments to move a shortcut from a style that has one, which you don't use, to style, which doesn't have one that you do use, you will have to derive a new new style sheet or modify the built-in one.
Oct
27
answered Frontend: Adding cell-type choices to the “Choose how to enter input” drop-down
Oct
27
reviewed No Action Needed Speeding up the generation of all k-edge-coloring of a graph
Oct
27
reviewed No Action Needed Frontend: Adding cell-type choices to the “Choose how to enter input” drop-down
Oct
27
reviewed Edit suggested edit on NDSolve with a constant
Oct
27
revised NDSolve with a constant
I know the symbolic integral from mathematica notebook doesn't appear well here that's why it is preferable to use Integrate function.
Oct
27
reviewed No Action Needed I'm trying to make an internet radio alarm clock
Oct
27
revised Hatched filling for ListLinePlot
Improved formatting
Oct
27
reviewed No Action Needed Hatched filling for ListLinePlot