12,848 reputation
41653
bio website none
location Ann Arbor, MI
age 76
visits member for 1 years, 6 months
seen 1 min 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.


2d
comment Simplifying trig expressions containing Abs or Sqrt
The answers you say you are expecting are wrong answers.
2d
revised Simplifying trig expressions containing Abs or Sqrt
The answers you say you expect are wrong answers.
2d
reviewed Reject suggested edit on Plotting a StateResponse inside a loop for some reason gives an error
2d
revised How can I use the Rules returned by FindFit?
General clean-up
2d
revised How to compactify a Mathematica notebook?
General clean-up
2d
comment How to compactify a Mathematica notebook?
Look at Set and SetDelayed. Look at this answer to understand the difference between the two.
2d
reviewed Close How to loop in reverse order?(e.g. for i from 10 to 1)
2d
reviewed Close Plotting a StateResponse inside a loop for some reason gives an error
2d
revised Controlling spacing of histograms in Histogram3D
deleted 25 characters in body; edited title
2d
reviewed Close Fold Dynamic Function
2d
revised How to generate a list with a loop, and put it into a variable?
added 292 characters in body
2d
answered How to generate a list with a loop, and put it into a variable?
2d
reviewed Reviewed How to generate a list with a loop, and put it into a variable?
2d
revised How to generate a list with a loop, and put it into a variable?
General clean-up
Apr
20
revised Issue with Set function
General clean-up
Apr
20
revised “NotebookPredictions”
added 5 characters in body
Apr
20
comment Manipulate executes twice
For your two-digit number output problem you might use Round[#., 0.01]&
Apr
20
revised How to select the first “lowest” (first valley) number in a list?
Made English more idiomatic.
Apr
20
revised Little triangles appearing in a Mathematica region plot with “opacity” saved in a PDF file
Improved formatting
Apr
20
reviewed Close Little triangles appearing in a Mathematica region plot with “opacity” saved in a PDF file