23,492 reputation
42672
bio website none
location Ann Arbor, MI
age 77
visits member for 2 years, 5 months
seen 4 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. My main reason for joining StackExchange is to participate in Mathematica.SE. I enjoy answering question when I can, but I also enjoy working at making the site a better place to visit.

I started using Mathematica in 1997 (Ver. 3). I am currently using Ver. 10.0.2. 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.


4h
reviewed Leave Closed Want to compute the permutations of {1, 2, …, 11} with only 3 GB of memory
22h
reviewed Leave Open How to import a file for processing but not for displaying?
22h
reviewed Leave Closed Integrated Solution Graphics
1d
reviewed Leave Closed What does F[[1]] mean?
2d
reviewed Leave Closed Mathematica 10.1 availability
Mar
26
reviewed Leave Closed Perturbation theory with Mathematica: Definite integral of polynomial times exponential times hypergeometric function of imaginary argument
Mar
25
reviewed Looks OK Confusion in Numerical Integration while using FindRoot
Mar
25
reviewed Reviewed The index number of an isolated critical point = 1+(e-h)/2
Mar
25
reviewed Edit and Reopen Delete data were y = “NS” in a list with elements {x, y}
Mar
23
reviewed Leave Closed Having trouble reading this output (pure functions)
Mar
23
reviewed Leave Closed Write a circle using module
Mar
23
reviewed No Action Needed Feasability question about object tracking in 3d space
Mar
22
reviewed Reject For-loop — calculate with values from imported data
Mar
22
reviewed Leave Closed For-loop — calculate with values from imported data
Mar
22
reviewed Approve The relative motion of the points about the common center of mass
Mar
22
reviewed Leave Open Block anti-diagonalize a square matrix?
Mar
22
reviewed Edit and Reopen How to use Solve a set of equations
Mar
22
reviewed Reviewed How to simplify an expression with a radical sign nesting in a radical sign
Mar
22
reviewed Leave Open Projectile motion in Mathematica using Euler's method
Mar
22
reviewed Leave Open Random walk using Module