18,809 reputation
41963
bio website none
location Ann Arbor, MI
age 76
visits member for 1 year, 10 months
seen 5 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.


Jun
5
reviewed Close Rewriting one expression using a variable representing another expression
Jun
5
reviewed Close Unexpected result from Map
Jun
4
reviewed Close Conditionally formatting elements in a list
Jun
4
reviewed Close How to compute this triple integral?
Jun
2
reviewed Leave Open Is there a way to make the MemberQ function apply to a list?
Jun
1
reviewed Close How can I recover the source code from cdf file?
Jun
1
reviewed Reopen Finding the first five eigenvectors and values for a 500×500 matrix
May
31
reviewed Close Finding the first five eigenvectors and values for a 500×500 matrix
May
31
reviewed Reviewed Calculating the conditional probability of discrete samples
May
31
reviewed Reviewed How I can define a new function as a function argument?
May
31
reviewed Leave Open Negative probability?
May
29
reviewed Edit How can I get the time steps chosen by NDSolve when the Method -> “ExplicitRungeKutta” option is given?
May
29
reviewed No Action Needed Having trouble saving a plot with legends
May
29
reviewed Close Can the value of a variable be made to persist between front end sessions?
May
28
reviewed Close How do I fit NDSolve result to experimental data?
May
28
reviewed Close How would I take a variable from a string and reassign its value?
May
28
reviewed Looks OK Better way to select all array indexes matching predicate?
May
28
reviewed Close Works in mathematica but not as cdf preview or web embedded cdf
May
28
reviewed Edit and Reopen Finding Values of All Nine Constants in q-hypergeometric Equation
May
28
reviewed Close How to use results of Dsolve and get derivative of that?