19,867 reputation
24193
bio website sites.google.com/a/unca.edu/…
location Asheville, NC
age
visits member for 2 years, 7 months
seen 12 mins ago

I've been a professor of mathematics at The University of North Carolina - Asheville since 1997. I've been using Mathematica since I started graduate school in mathematics at Ohio State in 1989. At that time, we used version 1.1 (as I recall) to teach calculus in our Calculus and Mathematica classes. I've used it pretty much continuously in my teaching and research since then.

In addition to my posts on SE, you can find some of my papers, teaching notebooks and other Mathematica based oddities strewn throughout my website.

In recent years, I've also worked as a part-time consultant to Wolfram Research focusing on development of mathematical content for WolframAlpha.


Aug
26
answered How to make Epilog render behind the main plot
Aug
19
comment Coordinate extraction and manipulating graphs as graphics objects
Oh, it's just one tiny little change. I thought about editing your answer but you can do it, if you want. And, yes, I've posted the GraphConvert thing before but more recently learned of the more intuitive approach with Show.
Aug
19
reviewed Leave Open Mapping data on Archimedes' spiral
Aug
19
comment Coordinate extraction and manipulating graphs as graphics objects
The GraphComputation`GraphConvertToGraphics function is called by Show when applied to a Graph. Thus, Show[g] accomplishes the same thing.
Aug
16
comment What's new in Mathematica 10 that begginers must know?
JuliaSetPlot is my personal vote - but it certainly depends upon your interests.
Aug
16
revised How to find the domain and range of a function with Mathematica?
added 574 characters in body
Aug
14
awarded  Good Answer
Aug
12
revised How can I write a function which takes another function of a variable and the variable itself as arguments and gives a list of critical points?
added 5 characters in body
Aug
12
reviewed Leave Open Elegant way to do series expansion around x+$\epsilon$
Aug
12
answered How can I write a function which takes another function of a variable and the variable itself as arguments and gives a list of critical points?
Aug
11
comment DSolve problem with system of linear ODEs
I have to admit that I find it an odd syntactical difference that NDSolve works while DSolve does not. I don't think I'd call it a bug, though.
Aug
11
revised DSolve problem with system of linear ODEs
edited tags
Aug
11
comment DSolve problem with system of linear ODEs
You need to define X: X[t_] = {x[t], y[t], z[t]}.
Aug
11
awarded  Populist
Aug
11
comment Automatically detect largest interval over which NDSolve can find a solution
@MichaelE2 You are probably right - I was clearly being paranoid. :)
Aug
11
comment Fill gap created by Exclusions
I feel strangely compelled to upvote this!
Aug
10
comment Fill gap created by Exclusions
You're plotting two different functions and each has a reasonable choice of Exclusions independent of the other. Why don't you use to Plot command and combine the results with Show? You might also try the TrackedSymbols -> {t0,s} in your Manipulate command. Finally, with 9 questions now asked, I think it would be reasonable for you to properly format your code - it's just a matter of indenting your code block four spaces.
Aug
10
comment Plotting a parametric function with three input variables
@hieron The With statement is certainly not necessary but makes it super simple to extract individual plots. You can use With[{c=Pi/2},___], for example to look at that particular image. It arose because I did exactly that when trying to figure out what was going on mathematically. Clearly, this would be particularly nice, if there were more cs in the expression.
Aug
10
answered Automatically detect largest interval over which NDSolve can find a solution
Aug
10
revised Plotting a parametric function with three input variables
added 47 characters in body