> Not one, but many. Here is an unusual one (similar in concept > to GvR?): > > http://tinyurl.com/p5xwr
It seems to be part of this: http://standards.nctm.org/document/eexamples/chap4/4.3/index.htm Daniel _______________________________________________ Edu-sig mailing list [email protected] http://mail.python.org/mailman/listinfo/edu-sig
