16,529 reputation
41959
bio website none
location Ann Arbor, MI
age 76
visits member for 1 year, 9 months
seen 24 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.


Jul
21
revised Save state of buttons, sliders, listpicker in enterpriseCDF?
Improved formatting
Jul
21
reviewed Leave Closed How to stack matrices: one on top of another?
Jul
21
answered How to combine the sum of two rational polynomials into a single rational polynomial
Jul
21
revised How to combine the sum of two rational polynomials into a single rational polynomial
Moderate clean-up
Jul
21
reviewed Looks OK How to label a histogram operating on a dataset?
Jul
21
answered Why do quote marks appear in output when saved with Save Selection As?
Jul
21
reviewed Edit How to combine the sum of two rational polynomials into a single rational polynomial
Jul
21
revised How to combine the sum of two rational polynomials into a single rational polynomial
deleted 12 characters in body
Jul
21
revised How to label a histogram operating on a dataset?
added 8 characters in body
Jul
21
answered How to label a histogram operating on a dataset?
Jul
21
comment Can't plot rotated region
@user21. re: "an expr with Head TransformedRegion does not work." I don't think that is the issue since TransformedRegion[Rectangle[], RotationTransform[45 °, {.5, .5}]] has head TransformedRegion, but can be plotted by RegionPlot.
Jul
21
reviewed Close Save state of buttons, sliders, listpicker in enterpriseCDF?
Jul
21
reviewed Close How to get the indices of an Image3D that have a value of interest
Jul
21
reviewed Reopen Swap elements in list without copy
Jul
20
revised Need help in building a pattern
Made English more idiomatic.
Jul
20
comment How to create an array of functions
1) you can store anything in a list (array). 2) a For-loop is almost always a bad implementation in Mathematica
Jul
20
revised How to create an array of functions
Minor clean-up
Jul
20
comment Does anyone know the options for “HierarchicalEdgeBundling” in Mathematica?
possible duplicate of How to visualize large graphs with directed edge bundling
Jul
20
reviewed Close Marking certain detected points on an image
Jul
20
reviewed Close Checking Calogero-Moser eigenfunction