18,689 reputation
41963
bio website none
location Ann Arbor, MI
age 76
visits member for 1 year, 10 months
seen 57 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.


52m
revised Conceal GUI source code
deleted 19 characters in body
8h
comment Menu item “Interrupt Evaluation…” missing in V10
The documentation claims it is still available even though it's no longer there. And the shortcut given Cmnd + , doesn't work either; that combination of keys brings up the Preferences dialog. A serious problem.
8h
revised Menu item “Interrupt Evaluation…” missing in V10
Minor clean-up
8h
revised Why does WordData fail to find “PartsOfSpeech” when given a list of two words?
Answered issue raised in comment
8h
revised Why does WordData fail to find “PartsOfSpeech” when given a list of two words?
Answered issue raised in comment
9h
revised Why does WordData fail to find “PartsOfSpeech” when given a list of two words?
added 9 characters in body; edited tags; edited title
9h
revised Why does WordData fail to find “PartsOfSpeech” when given a list of two words?
added 314 characters in body
9h
answered Why does WordData fail to find “PartsOfSpeech” when given a list of two words?
10h
revised How to solve two non-linear equations in two variables
Major clean-up
10h
revised Sum rule in integration not working
added 5 characters in body; edited title
2d
comment Some global variables are defined even at the start of a fresh session
Can confirm this happens on OS X in V10 but not in V9. Immediately after stat-up the the Global context seems to be a bit dirty.
2d
revised Some global variables are defined even at the start of a fresh session
Middling clean-up; edited tags
2d
answered Problem with general assumptions
2d
revised Problem with general assumptions
Middling clean-up
2d
revised Specifying initial conditions for a PDE
Improved formatting
2d
revised Tuples without self-loop
Minor clean-up
2d
revised Export MatrixPlot graphics to PDF
deleted 5 characters in body; edited title
2d
revised NDSolveValue producing message: Input is not an ordinary differential equation
Middling clean-up
2d
revised Power::infy: error using FindFit
Middling clean-up
2d
revised What is the meaning of a result of {{}}?
deleted 28 characters in body; edited tags; edited title