16,743 reputation
41959
bio website none
location Ann Arbor, MI
age 76
visits member for 1 year, 9 months
seen 1 hour 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.


9h
revised How to know at which point of a calculation I am while using Table
added 3 characters in body; edited tags
10h
revised Need help in understanding code
added 8 characters in body
10h
revised Need help in understanding code
Moderate clean-up
10h
revised Calculating power spectral density
Moderate clean-up
1d
revised Intersection of lists of disjoint intervals
Moderate clean-up
1d
revised Controlling the placement of the y-axis
Made English more idiomatic.
2d
revised Why can NSolve only solve this system of equations after trivial substitution?
added 79 characters in body
2d
revised Why can NSolve only solve this system of equations after trivial substitution?
Improved formatting
2d
revised Interpolation function rejected by ParametricPlot3D
Moderate clean-up
2d
revised How do I exclude the vertical line plotted at a discontinuity?
deleted 24 characters in body; edited title
2d
revised Which function definition is used to evaluate an expression that matches the lefthand side of more than one definition?
Made title more descriptive of actual question. Minor clean-up
2d
revised Specifying parameters for the Ticks option
Major clean-up
2d
revised Providing a color function for ListPointPlot3D
Added an intro stating associations will solve the problem
Jul
27
revised Providing a color function for ListPointPlot3D
Moderate clean-up
Jul
27
revised Improving the speed of evaluating Table with nested functions
Improved formatting
Jul
26
revised TrueQ returning False on true statement
edited title
Jul
26
revised How can I mend this broken heart?
Improved formatting
Jul
26
revised NDSolve: EventAction list specification using Table fails
edited title; edited tags
Jul
26
revised EvaluationMonitor is evaluating up to 3232 steps
added 5 characters in body; edited tags; edited title
Jul
26
revised EvaluationMonitor is evaluating up to 3232 steps
added 5 characters in body; edited tags; edited title