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


Jul
19
reviewed Approve suggested edit on Solve matrix equation A*X=X*B using LeastSquares
Jul
19
comment Why doesn't repeated PatternSequence work with explicit pattern names?
The purpose of argument patterns on the lefthand side of a Set or SetDelayed is to allow the evaluator to determine which, if any, down-values can be used for further evaluation of the expression. It is not intended to be and can not be use as a kind macro preprocessor for modifying the argument sequence. So the answer to latest question is: no.
Jul
18
revised How can I extract the outline of bubbles in my image?
Moderate clean-up
Jul
18
reviewed Close My code is not converging using NIntegrate. Why? Help please
Jul
18
reviewed Close Game of Life in 3D
Jul
18
reviewed Reviewed How to define range for Manipulate using exponents
Jul
18
revised How to define range for Manipulate using exponents
Moderate clean-up
Jul
18
reviewed Leave Closed deleteduplicates Delete elements of a list
Jul
18
reviewed No Action Needed How would one minimize with respect to an unknown number of variables?
Jul
18
reviewed Reviewed How to put labels on a 3d plot
Jul
18
revised How to put labels on a 3d plot
Minor clean-up
Jul
18
awarded  Proofreader
Jul
18
reviewed Approve suggested edit on Slow work of TimeSeriesWindow
Jul
18
reviewed Close Generating and plotting hypocycloids
Jul
18
revised Generating and plotting hypocycloids
deleted 10 characters in body
Jul
18
reviewed No Action Needed How can I plot a Chebyshev spiral?
Jul
18
reviewed Reviewed Transforming a CopulaDistribution only works with the Product Copula
Jul
18
revised Transforming a CopulaDistribution only works with the Product Copula
Improved formatting
Jul
18
comment Dataset Mathematica 10.0
I ran this on OS X 10.6.8 and it worked perfectly. I had a fresh kernel.
Jul
18
revised How to draw timing diagram from a 0 and 1 string list
Fixed minor error in code