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41963
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location Ann Arbor, MI
age 76
visits member for 1 year, 10 months
seen 4 mins ago

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.


Jun
11
revised ParametricPlot with plot markers
Moderate clean-up
Jun
11
revised Is there an equivalent of Sum for And?
edited title
Jun
11
comment Hiding the Code in .CDF File
Try this: Select the cell with the code you want to hide, then select Cell > Cell Properties. Click on Open to uncheck it.
Jun
11
revised How to evaluate Floor[1/2 + Arg[z]/(2π)] with Re[z] > 0
Moderate clean-up
Jun
11
revised How would you efficiently implement BinListsBy?
edited title
Jun
11
answered Prohibiting Autorun in a Manipulate?
Jun
11
revised Prohibiting Autorun in a Manipulate?
Fixed punctuation
Jun
11
revised How to control the layering of graphics displayed with Show
Moderate clean-up
Jun
11
comment How to control the layering of graphics displayed with Show
Have you looked at the Opacity directive for the code that generates isosurface?
Jun
11
reviewed Close How to map vertex points from the surface of a straight pipe onto 2D plane
Jun
11
revised How can I get thicker lines in the legends of a ListLinePlot?
Improved formatting
Jun
11
revised How to parse information contained in a file name
Moderate clean-up
Jun
11
comment Start indexing at 0 for RSolve without giving an initial value
You should read this reference page. You will find that the index 1 in C[1] has nothing to do with the index n in you recurrence equation, but is an artifact of Mathematica's internal book keeping.
Jun
10
revised Using Combinatorica`ListNecklaces in v9
Minor clean-up
Jun
10
reviewed Edit and Reopen Conditionally formatting elements in a list
Jun
10
revised Conditionally formatting elements in a list
Moderate clean-up
Jun
10
reviewed Reviewed How to map vertex points from the surface of a straight pipe onto 2D plane
Jun
10
revised How to map vertex points from the surface of a straight pipe onto 2D plane
Moderate clean-up
Jun
10
revised Smooth 4D (3D + color) plot from discrete points
edited title
Jun
10
revised Front-end issue: Some glyphs not displayed
added 1 character in body