19,809 reputation
42064
bio website none
location Ann Arbor, MI
age 76
visits member for 1 year, 11 months
seen 5 hours 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 its classical Greek synthetic form and in its more modern analytical/transformational form.


Dec
22
reviewed No Action Needed AccountingForm w/o significant figures
Dec
21
awarded  Nice Answer
Dec
20
answered Any ideas on how to use the Region` context?
Dec
19
revised How to do subtraction with sets in which the elements have multiplicity indicators?
General cleanup
Dec
19
revised Transform list of inequalities into matrix form $A\ x \leq b$
General cleanup
Dec
19
reviewed Edit suggested edit on Failure of CountryData due to connectivity?
Dec
19
revised Failure of CountryData due to connectivity?
deleted 3 characters in body
Dec
19
reviewed Edit suggested edit on No response from DSolve
Dec
19
revised No response from DSolve
Reformatted
Dec
19
reviewed Edit suggested edit on Is there a relatively easy way to add the “Cone of Influence” to a waveletscalogram?
Dec
19
revised Is there a relatively easy way to add the “Cone of Influence” to a waveletscalogram?
Reformatted;corrected capitalization
Dec
19
reviewed Approve suggested edit on Do a gauge transformation for a Chern-Simons theory?
Dec
19
reviewed Close Problem to solve an integral equation
Dec
18
revised Is it possible to convert expressions containing Root objects to Excel formulas?
Improved formatting
Dec
18
comment How to create effect like Van Gogh's stroke brush?
Many raster image processing programs come with a filter similar to the one you request. Adobe Photoshop is an example of one such.
Dec
18
reviewed Reject suggested edit on How do I construct a non-linear model from experimental data?
Dec
18
comment Making a predictive statistical model
You might want to look at this recent question to get some ideas.
Dec
18
reviewed Edit How do I construct a non-linear model from experimental data?
Dec
18
revised How do I construct a non-linear model from experimental data?
General cleanup
Dec
18
reviewed Reviewed Making a predictive statistical model