23,492 reputation
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location Ann Arbor, MI
age 77
visits member for 2 years, 5 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. My main reason for joining StackExchange is to participate in Mathematica.SE. I enjoy answering question when I can, but I also enjoy working at making the site a better place to visit.

I started using Mathematica in 1997 (Ver. 3). I am currently using Ver. 10.0.2. 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.


Mar
24
comment How to get output in a specified format
@SjoerdC.deVries. Not sure what you are getting at, but consider that IntegerString[-42, 10, 6] gives "000042". To munge that into the form I actually need doesn't seem better than what I did.
Mar
24
revised How to get output in a specified format
added 8 characters in body
Mar
24
revised How to get output in a specified format
changed answer to do file output
Mar
24
comment How to get output in a specified format
OK, but in a file or on the screen in a notebook window?
Mar
24
revised How to get output in a specified format
edited title
Mar
24
revised How to get output in a specified format
added 93 characters in body
Mar
24
comment How to get output in a specified format
Your question is not clear. Is your goal to format output in a Mathematica notebook, or is it exporting your data to disk as formatted text?
Mar
24
answered How to get output in a specified format
Mar
23
revised Random walk with fixed initial and final coordinates and the length
Made English more idiomatic
Mar
23
revised How do I simplify an algebraic equation with respect to a specific variable?
Routine clean-up
Mar
23
revised How do I simplify an algebraic equation with respect to a specific variable?
corrected typo in code
Mar
23
revised How do I simplify an algebraic equation with respect to a specific variable?
added 309 characters in body
Mar
23
answered How do I simplify an algebraic equation with respect to a specific variable?
Mar
23
revised Issue with creating gif
Routine clean-up
Mar
23
comment the equation has smll 1,2, why?
Please do not post images of your work, especially when the images display at a size that make them unreadable. Please post your actual Mathematica code as text that can be copied and pasted in a Mathematica notebook. Without such, no one will be able to reproduce your problem, nor will they be able to experiment with possible repairs.
Mar
23
revised the equation has smll 1,2, why?
added 2 characters in body; edited title
Mar
23
revised NDSolve can't solve system containing HeavisideTheta
added 99 characters in body; edited title
Mar
23
reviewed Leave Closed Having trouble reading this output (pure functions)
Mar
23
comment How to set same color and legend for ListLinePlot
In V8 there is a Plot Legends package you can load with Needs. It's not as capable or as easy to use as the current PlotLegends option, but I think it can do what are you are looking for. I don't have V8 available, so I can't produce a V8 validated answer to your question. Here are two references that should help: guide; tutorial.
Mar
23
revised Plotting the space-coordinate path of a projectile
edited title