21,066 reputation
42568
bio website none
location Ann Arbor, MI
age 77
visits member for 2 years, 1 month
seen 19 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 save and manipulate an already plotted graphic
Major clean-up
Nov
4
reviewed Approve suggested edit on 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
revised Convolution of a Dirac impulse with a periodic signal
Improved formatting
Nov
2
revised Convolution of a Dirac impulse with a periodic signal
Improved formatting
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
Oct
30
revised Hilbert transform of density of states
Improved formatting
Oct
29
revised Phase portrait on a cylinder
deleted 8 characters in body
Oct
29
reviewed Reviewed Usage of @ symbol in Mathematica
Oct
29
revised Usage of @ symbol in Mathematica
deleted 9 characters in body