19,884 reputation
42164
bio website none
location Ann Arbor, MI
age 76
visits member for 1 year, 11 months
seen 22 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 its classical Greek synthetic form and in its more modern analytical/transformational form.


Sep
16
revised Convergence problem when I try to integrate a function of one variable and one symbolic parameter
edited title
Sep
16
revised Convergence problem when I try to integrate a function of one variable and one symbolic parameter
Improved formatting
Sep
16
answered Convergence problem when I try to integrate a function of one variable and one symbolic parameter
Sep
16
comment Convergence problem when I try to integrate a function of one variable and one symbolic parameter
I can not reproduce your problem on my system, V10 running on OS X. When I evaluated your integral with the assumption a > 1, I get the result you were expecting.
Sep
16
revised Convergence problem when I try to integrate a function of one variable and one symbolic parameter
added 13 characters in body
Sep
16
answered Conditional ListPlot with text recognition
Sep
15
revised How can I solve an equation where indexed variables get updated during iteration?
Major clean-up
Sep
15
comment How to manipulate a circle in GeoGebra style?
I have now. It meets the specs. I like it. But I don't like circle. I think it detracts from your answer to leave it in.
Sep
15
comment How to manipulate a circle in GeoGebra style?
Still seems wrong. Dragging the center locator doesn't change the radius. Dragging on the circle's circumference doesn't move it.
Sep
15
revised How to manipulate a circle in GeoGebra style?
deleted 3 characters in body
Sep
15
revised How to manipulate a circle in GeoGebra style?
added some explanation on how it works
Sep
15
comment How to manipulate a circle in GeoGebra style?
This is nice, but it doesn't have the behavior the OP asks for.
Sep
15
revised How to manipulate a circle in GeoGebra style?
added 2 characters in body
Sep
15
answered How to manipulate a circle in GeoGebra style?
Sep
15
revised How to manipulate a circle in GeoGebra style?
Major clean-up
Sep
15
revised Maximize violating constraints
deleted 17 characters in body; edited title
Sep
15
revised Wrong answer from DSolve?
added 17 characters in body
Sep
14
reviewed Reviewed Real Analysis question
Sep
14
revised Creating a table giving the statistics of random polynomials
Made English more idiomatic
Sep
14
revised Determining the range of parameters that yield real values for a certain NIntegrate form
Average clean-up