18,779 reputation
41963
bio website none
location Ann Arbor, MI
age 76
visits member for 1 year, 10 months
seen 15 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. 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.


Jun
20
reviewed Reviewed Generating a list of standard normal random variables
Jun
20
revised Generating a list of standard normal random variables
Made English more idiomatic.
Jun
20
comment Function pattern to support listed and non-listed arguments
I didn't edit your bracketing. That edit was made by YOU. Look at the edit history.
Jun
20
revised Collapsible Group of Control Objects
Added missing word "be"
Jun
20
revised Function pattern to support listed and non-listed arguments
corrected a mis-spelling
Jun
20
revised How can I obtain the complex root of an equation with FindRoot
Major clean-up
Jun
20
revised Inverse of a restriction of a non-invertible matrix
Made English more idiomatic.
Jun
20
answered Collapsible Group of Control Objects
Jun
20
reviewed Reviewed how can tangent half angle substitution be done in Mathematica?
Jun
20
revised how can tangent half angle substitution be done in Mathematica?
Minor clean-up
Jun
20
reviewed Reject suggested edit on Drawing pairs (graph, circle packing)
Jun
20
revised How to find a particular solution using NDSolve
Improved formatting
Jun
20
revised BoxWhiskerChart without whiskers
modified the definition of boxes for what I hope is the last time
Jun
19
comment BoxWhiskerChart without whiskers
@mfvonh. Thanks for pointing out the scaling problem. I have modified my code to address the issue.
Jun
19
revised BoxWhiskerChart without whiskers
Improved the scaling of the output image over a wide range of means and std. dev.
Jun
19
reviewed Leave Open How to create moving graphics that maintain shape
Jun
19
reviewed Reviewed multiple sequential definitions, defining own set function
Jun
19
revised multiple sequential definitions, defining own set function
Improved formatting
Jun
19
revised BoxWhiskerChart without whiskers
deleted 4 characters in body
Jun
19
comment How to localize the symbols x,y, A, B in the following program?
@eldo. I glad it helped you as well, but I still think the answers are too specialized to be kept in our archives. It's too bad the OP didn't pose the question more generically. It seems to me in the "old days", this site got more questions where the OP took the time and trouble to write up his/her question in generic form, thus enhancing the value of both the question and its answers