21,203 reputation
42568
bio website none
location Ann Arbor, MI
age 77
visits member for 2 years, 2 months
seen 14 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.


Nov
4
revised How to simplify only the lowest level of a nested expression
Routine clean-up
Nov
4
revised Using Integrate to define a function
Routine clean-up
Nov
4
reviewed Looks OK How can a field be efficiently added to a Dataset?
Nov
4
answered CoordinateTransformData (cartesian to spherical)
Nov
4
reviewed Reviewed CoordinateTransformData (cartesian to spherical)
Nov
4
revised CoordinateTransformData (cartesian to spherical)
Major clean-up
Nov
4
revised How to save and manipulate an already plotted graphic
Major clean-up
Nov
4
reviewed Approve Adjusting axis and grid-line appearance in a polar plot
Nov
2
revised Where put or edit an init.m to add menu commands?
edited title
Nov
2
reviewed No Action Needed Unintended effect of closing square bracket on Spanish keyboard in Mathematica online
Nov
2
revised Mathematica using all available RAM
Routine clean-up
Nov
2
revised Off[FinancialData::notent] fails on first run but works thereafter
added 1 character in body
Nov
2
reviewed No Action Needed Off[FinancialData::notent] fails on first run but works thereafter
Nov
1
reviewed Reviewed NDSolve not creating plots
Nov
1
revised NDSolve not creating plots
Improved formatting
Oct
31
revised Finding the point of best focus for a ball lens
Major clean-up
Oct
31
revised Exporting animated gifs; “AnimationRepetitions”->1 doesn't work
added 2 characters in body; edited title
Oct
31
revised Concise way to express Table[FactorInteger[300][[n, 2]], {n, 1, Length @ FactorInteger[300]}]
added 2 characters in body; edited tags; edited title
Oct
31
revised Faster way to build a specific height in a thickness plane graph?
Improved formatting
Oct
30
revised Trying to get plots to work AGAIN
Improved formatting