Eduardo Cavazos wrote:
Below is a little session. The problem is example 1 from chapter 4.2 of
Calculus by Gilbert Strang. This is a nice text and is available online:
http://ocw.mit.edu/ans7870/resources/Strang/strangtext.htm
Here's an awesome GFDL licensed textbook,
Vector Calculus by Michael Corral:
http://www.mecmath.net
I added a some examples and exercises from the text to the numero examples:
http://github.com/dharmatech/numero/raw/master/symbolic/examples.scm
Mainly just ones to test partial differentiation and the simplifier.
Scheme+Emacs is funner than Mathematica any day. ;-) I'm thinking about
an Emacs "notebook" mode whereby output "cells" in the text would be
updated automatically when inputs are changed. Aziz is feeling queasy by
now. :-)
I'll be hitting the limits of the cheesy 'infix' parser I have soon so I
may have to switch up to Aziz's; I checked it out, looks good.
Finally, it would eventually be nice to use 'match' against R6RS
records. PLTs matcher supports records. Not sure if there's any pattern
matcher for R6RS which does. As a workaround, I could probably do
something kludgly like (record->list ...) and match against that.
Ed
