18,619 reputation
41963
bio website none
location Ann Arbor, MI
age 76
visits member for 1 year, 10 months
seen 2 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.


Jul
23
reviewed Close Plot a perfect looking circle using two functions, always look like an ellipse
Jul
23
reviewed No Action Needed Problems with NMinimize
Jul
23
reviewed Close Making a Logplot with errorbars
Jul
23
reviewed Leave Closed How to solve an integral equation by iteration method?
Jul
23
reviewed Close Take the function f(x)=2x-x^2 and the open interval P=(0,2) why is f(P)=(0,1]? why is that 1 closed?
Jul
23
reviewed Edit List of Coefficients of Expression with symbolic Terms
Jul
23
reviewed Leave Open Making a fit to my empirical data
Jul
23
reviewed Close Plotting vector field
Jul
23
reviewed Close Why isn't Refresh working as expected?
Jul
22
reviewed Reject suggested edit on Symbolic solution(s) to generalized Heat equation
Jul
21
reviewed Reviewed Mathematica unable to solve equation numerically while Wolfram|Alpha can
Jul
21
reviewed Leave Open Taking inverse powers of an expression to that power
Jul
21
reviewed Close Mathematica policy for correctness of results
Jul
21
reviewed No Action Needed Stochastic Simulation using the Gillespie algorithm
Jul
21
reviewed Edit and Reopen Save state of buttons, sliders, listpicker in enterpriseCDF?
Jul
21
reviewed Leave Closed How to stack matrices: one on top of another?
Jul
21
reviewed Looks OK How to generate and label multiple histograms as Query operator(s)?
Jul
21
reviewed Edit How to combine the sum of two rational polynomials into a single rational polynomial
Jul
21
reviewed Close Save state of buttons, sliders, listpicker in enterpriseCDF?
Jul
21
reviewed Reopen Swap elements in list without copy