12,888 reputation
41653
bio website none
location Ann Arbor, MI
age 76
visits member for 1 year, 6 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. 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.


Apr
14
reviewed Approve suggested edit on How to manually set z-axis values in a 3d plot?
Apr
14
reviewed Close Sectional averages of a list
Apr
14
reviewed Close Vector-calculus
Apr
14
reviewed Close Plot Notes present in sound sample
Apr
14
reviewed Leave Closed What is the formula's are used to convert to meters/second?
Apr
13
reviewed Close Imaginary number appears in Integrate
Apr
13
reviewed Close RegionPlot of a Double integration
Apr
13
reviewed Close (Counting problem) very interesting Modular N algebraic eqs - for combinatorics experts
Apr
13
reviewed Reviewed Solving an exponential inequality with parameters
Apr
12
reviewed Close how to solve this ode problem?
Apr
12
reviewed Close I don't understand ListCorrelate!
Apr
12
reviewed Close Why does Mathematica list the variables in a double integral backwards?
Apr
12
reviewed Leave Open Help to solve the equation with RungeKutta method
Apr
11
reviewed Close Creating If statements programmatically
Apr
11
reviewed Close Horizontal Tree Layout?
Apr
11
reviewed Close Generate array of every $n^{th}$ integer between two bounds
Apr
11
reviewed Reviewed How should I use precision in this code?
Apr
11
reviewed Edit and Reopen Constraining function found by NDSolve to stay positive
Apr
10
reviewed Reviewed T is an operator on inner space, how to prove T is invertible if and only if T* is invertible?
Apr
10
reviewed Reopen Clicking to add/remove a Locator