21,624 reputation
246106
bio website sites.google.com/a/unca.edu/…
location Asheville, NC
age
visits member for 2 years, 11 months
seen 19 hours 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.


Sep
24
answered What's wrong in FunctionPeriod?
Sep
23
comment Unable to compile to C
Works for me with 10.0.1 on Mac OSX. Did you recently update? What's your platform?
Sep
23
comment Combining many plots with Show produces wrong x-axis position and wrong filling
@rcollyer Yes, I think you're right. I guess my approach fixes the problem precisely because it forces the AxesOrgin to be the same throughout.
Sep
23
comment getting vertices in order from spanning tree
I get a sequence of errors of the form: Function::flpar: Parameter specification Append[vlist,#1] in Function[Append[vlist,#1],1] should be a symbol or a list of symbols. >> I guess this can be fixed using SetDelayed rather than Set.
Sep
23
comment Combining many plots with Show produces wrong x-axis position and wrong filling
The problem is that the filling is generated to fit within each individual plot range. So just set the PlotRange in each of the plots individually, rather than just in the Show command. That way, the filling will fill the whole common plot range.
Sep
20
awarded  Nice Answer
Sep
19
comment Understanding differences between Maple and Mathematica in examples picked by Maplesoft
@DanielLichtblau Oops - better?
Sep
19
revised Understanding differences between Maple and Mathematica in examples picked by Maplesoft
added 370 characters in body
Sep
19
answered Understanding differences between Maple and Mathematica in examples picked by Maplesoft
Sep
19
comment What is going on here? (Wolfram|Alpha)
@martin Glad to hear it! I try to answer WA questions, quickly. :)
Sep
19
answered What is going on here? (Wolfram|Alpha)
Sep
19
comment What is going on here? (Wolfram|Alpha)
@martin - The question will be closed, you don't need to delete.
Sep
19
awarded  Generalist
Sep
18
comment Short form of Graphics
Sorry, I posted a comment since I looked at your post quite quickly. Does Plot[x, {x, 0, 1}] // Options help?
Sep
18
comment Short form of Graphics
How about Plot[x, {x, 0, 1}] // InputForm // Short? Or, if you need more control, Short[InputForm[Plot[x, {x, 0, 1}]], 10].
Sep
17
comment Kernel crashes when plotting $z=\sqrt{(x^2 + y^2)^0}$
@Mr.Wizard Yeah, I'm fine with that.
Sep
17
comment Kernel crashes when plotting $z=\sqrt{(x^2 + y^2)^0}$
@Mr.Wizard I flagged it as such but did not downvote. Both "answers" seem to be simple comments to me but I can't say that I feel strongly enough to make a meta post.
Sep
15
comment How to manipulate a circle in GeoGebra style?
Personally, I preferred the original circle based version - which garnered my upvote. While it didn't replicate the GeoGebra behavior exactly, it certainly got the same idea across and with much simpler code. Furthermore, it's not clear from the question that an exact replication was necessary - at least not to me.
Sep
12
comment Strange behaviour of MMA in derivatives of some standard functions
@belisarius Your question seems to be exactly opposite of the one here - namely, Plot[Derivative[f]...] uses a finite difference scheme on discrete functions, such as IntegerPart, Round and several others.
Sep
12
comment Speed of ConvexHullMesh
So, should the question be closed?