18,537 reputation
13889
bio website sites.google.com/a/unca.edu/…
location Asheville, NC
age
visits member for 2 years, 6 months
seen 23 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.


Mar
12
answered Check Google PageRank for a given URL
Mar
10
reviewed Approve suggested edit on What can I do to eliminate the error FindFit::nrjnum:?
Mar
10
comment How to format problem in WolframAlpha?
@JackStewart Awesome! I would love to point you to a site where WolframAlpha questions are welcomed by knowledgable users. Such questions are certainly not off topic here - just not in vogue.
Mar
10
revised How to format problem in WolframAlpha?
edited tags
Mar
10
answered How to format problem in WolframAlpha?
Mar
10
awarded  Enlightened
Mar
10
awarded  Nice Answer
Mar
9
comment Numerically solving an inhomogeneous partial differential equation
@xzczd Exactly! I guess you can also see this in the images by reflecting them about the vertical axis.
Mar
8
revised Numerically solving an inhomogeneous partial differential equation
edited body
Mar
8
comment Expression for the real 7/3 power
@AlexeiBoulbitch One clear difference is that you're using D while I'm using Derivative, as expressed via the prime symbol. Derivative operates on a function and you can then plug in a symbol x or a number. D operates on expressions and when you define f[x_] := D[thing,x] you run into a problem when x is set to a number.
Mar
8
comment Numerically solving an inhomogeneous partial differential equation
@xzczd By the definition of the derivative! More properly really, it becomes $y^{(1,0)}(0,z)$, as I've indicated in my edit.
Mar
8
revised Numerically solving an inhomogeneous partial differential equation
added 472 characters in body
Mar
7
reviewed Approve suggested edit on Correspondence between eigenvectors and eigenvalues
Mar
6
answered Expression for the real 7/3 power
Mar
6
comment Expression for the real 7/3 power
@belisarius I'm sure he's interpreting this as -1 and that's rather the point of the new CubeRoot and Surd functions.
Mar
3
comment Function definition and delayed assignment
Is there any specific reason that you're using number $MachinePrecision (which might be nice, if you want the precision tracked), rather than the symbol MachinePrecision (which might be nice, if you want speed)?
Mar
3
comment Function definition and delayed assignment
I made one small change - you were using the OP's symbol precis, where I suspect you wanted your symbol prec scoped by your With statement.
Mar
3
revised Function definition and delayed assignment
deleted 2 characters in body
Mar
1
comment How can I analyse Mathematica data using Wolfram|Alpha?
@AlbertRetey Of course, you're absolutely correct that you can generally send session info from Mathematica to W|A via the WolframAlpha commands. My claim is very specific to the input "plot a". The reason is that "plot a" has it's own valid interpretation and this is what the computational code ultimately sees. More examples might illuminate but, obviously, this is taking us a bit far afield from the original question.
Mar
1
comment How can I analyse Mathematica data using Wolfram|Alpha?
@Szabolcs I'm not sure that W|A has syntax at all - let alone "reliable syntax". :)