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location Ann Arbor, MI
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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 the classical Greek synthetic form and in the more modern analytical form.


Feb
25
reviewed No Action Needed Loop through a list and select elements
Feb
25
revised Changing Curl to use Colatitude
Improved the formatting.
Feb
25
comment Is there a way to track the Simplify process?
@user6048. Sorry, I don't have the expertise to answer you new questions. They are good questions, but they shouldn't be asked in a comment. I suggest you post some new questions to get the answers.
Feb
24
reviewed Reviewed How to accelerate updating some parts of sparse matrices?
Feb
24
revised How to plot an ellipse?
Improved formatting
Feb
24
revised Quiet doesn't work with FindRoot when using Brent method
Improved formatting
Feb
24
reviewed Reviewed What is wrong with my VectorPlot?
Feb
24
revised What is wrong with my VectorPlot?
Made English clearer and more idiomatic.
Feb
24
revised Print out all functions in Mathematica
edited title
Feb
24
revised Why does the syntax highlighter color a local symbol red inside DynamicModule?
Made title more descriptive of actual problem
Feb
24
revised WolframAlpha Selective SubPod Content
Improved formatting; fixed punctuation
Feb
24
reviewed Close Mathematica 9 Internet connectivity
Feb
24
comment Why does the syntax highlighter color a local symbol red inside DynamicModule?
I agree with Michael E2. It would appear that the Mathematica code editor's syntax analyzer isn't up handling these nested constructs. I suppose it might be considered a bug, but like Michael I take it as a warning.
Feb
23
reviewed Reviewed Mathematica 9 Internet connectivity
Feb
23
revised How do I make function A create and return function B?
Improved code formatting; improved readability
Feb
23
revised How do I get my equation to have the form $(x-a)^2 + (y-b)^2 + (z-c)^2-d = 0$?
Improved readability
Feb
23
revised Is there a way to track the Simplify process?
Added attribution of source for part of answer
Feb
23
answered Is there a way to track the Simplify process?
Feb
23
revised How to combine some elements of a list?
Made English more idiomatic.
Feb
23
revised Problems with doing calculus on Interpolating functions
Improved code formatting