September 13, 2011, 7:30 am
To all the new readers: Ready for some math? We love math here at Casting Out Nines, and I’ll be taking at least one day a week to talk about a math topic specifically. If you have a math post you’d like to see, email me (robert [dot] talbert [at] gmail [dot] com) or leave a comment.
The Fundamental Theorem of Calculus is central to an understanding of how differential and integral calculus connect. It says that if f is a continuous function on a closed interval [a,b] and x is in the interval, then the function
is an antiderivative for f. That is, F’(x) = f(x). The FTC (technically, this is just one part of that theorem) shows you how to construct antiderivatives for any continuous function. Possibly more importantly, it connects two concepts about change — the rate of change and the amount of accumulated change in a function. It’s a big deal.
I use a lot of technology in my…
February 5, 2008, 10:18 am
The ICTCM is coming up fast, and I’ll be there, mostly to give a talk on using wikis in upper-level math courses (like this one from my topics course in Cryptology) and take a minicourse on Camtasia. But I’ll also be checking out the latest and greatest (?) ideas and products in educational technology. One general category I am quite interested in is making all this technology that we use — especially computer algebra systems — portable and accessible from all different locations, in particular so that commuter students aren’t left out of the loop.
The fact that commuter students are left out is a growing concern for me, at least. We have Derive and Maple installed on my campus, but it’s a network install — and you have to be on campus to use it. Some campuses have a network installation that works from off campus, but we (and other places like us) also have a network that cannot be …
December 17, 2007, 12:33 pm
After getting some pretty lame advice from Maplesoft before, I emailed their tech support again regarding the Maple 10 vs. Leopard issue. (Namely, that Maple 10 dies a quick death every time I try to open it in Leopard.) This time, I got back some advice that actually seems to work. Here’s the text of the response email:
Mac OS 10.5 (Leopard) is not currently supported by Maple. There are
plans on adding support for this OS to a future version of Maple, but
this does not include Maple 10 or Maple 11.
Users with Maple 10 and Leopard may find they need to edit the
info.plist file which is part of the Maple 10.app package. In order to
do this ctrl+click on the “Maple 10.app” and select “Show Package
Contents”. Then open the “Contents” folder. Open the info.plist file
with a text editor and search for “1.4+” and change this to “1.4*”. Save
this file and try to start Maple 10.
Note you may…
October 30, 2007, 9:10 am
I need to interrupt the stream of retrospective articles to throw out a question/bleg to the audience. I upgraded the Macbook to Mac OS X Leopard yesterday, and now Maple 10 is not working. I’ve always had troubles with Maple 10 crashing on startup — I usually have to force-quit and restart at least twice before it opens and stays open. But now, no amount of that is getting Maple 10 to open. It just tries to open and then does nothing.
This is a serious issue because most of the computer algebra system work I do in my classes is with Maple on the laptop. As you’d probably guess, there’s no mention of any Leopard-related issues in a Google search or on Maplesoft’s website. I have submitted a ticket to their tech support and was reassured that “within 2-4 business days” somebody would get back to me, but I have a feeling that the blogosphere is faster. (And I need a resolution sooner…