18,198 reputation
41962
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location Ann Arbor, MI
age 76
visits member for 1 year, 10 months
seen 49 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.


Aug
18
comment Incompatible InterpolatingFunction between V9 (and earlier) and V10
But what can you do except rebuild them? WRI giveth and WRI taketh away. I guess I advise complaining to WRI tech support.
Aug
18
comment Incompatible InterpolatingFunction between V9 (and earlier) and V10
The V10 documentation doesn't mention any modifications since V3, but this is clearly bogus. I think the changes were made to support the new output format for interpolation functions that V10 implemented. I like the new output format.
Aug
18
comment Formatting and inserting a parameter table into a plot
+1. I hate to be spoil-sport, but the OP asked for two decimal places, not two significant figures. Personally, I think two significant figures would be more useful.
Aug
18
revised Formatting and inserting a parameter table into a plot
Middling clean-up
Aug
18
answered Simple string pattern crashes kernel
Aug
18
comment Simple string pattern crashes kernel
Even if you are using string patterns incorrectly, you shouldn't get a kernel crash.
Aug
18
revised How to find the value of a solution of an ODE at a particular point
deleted 2 characters in body; edited title
Aug
18
revised How can I plot weather data?
edited tags; edited title
Aug
18
reviewed Close How can I write a function whose argument is a date, and whose output is the average temperature for the day?
Aug
18
reviewed Leave Closed Test on classical guitar sound board vibrations of different brace pattern
Aug
18
revised How can I write a function whose argument is a date, and whose output is the average temperature for the day?
edited tags
Aug
18
comment Trouble picking up package definitions
Only initialization cells in .m files are evaluated when loaded.
Aug
18
comment Making a conjecture concerning a certain upper-triangular matrix
Is this a school homework exercise? We accept such questions, but ask that they be tagged as such.
Aug
18
revised Making a conjecture concerning a certain upper-triangular matrix
Major clean-up
Aug
17
reviewed Leave Closed How to modify MagnificationPopUp menu values in notebooks
Aug
17
reviewed Looks OK Store matched variables
Aug
17
revised How to add periodicity to condition?
added 125 characters in body
Aug
17
answered How to add periodicity to condition?
Aug
17
answered Text to speech in notebooks?
Aug
17
comment Problem with clipping of tick labels
@Mr.Wizard. I did not down vote because I am not 100% confident of my position. It's only my empirical observation, not the result of analysis. I thought a comment was appropriate, but nothing more. People are often very upset by a down vote. Also, I understand why you upbraid me, but why the up-voters? I would say they think the answer is correct.