Good and bad tutorial examples, backgammon in J, mutex implementation, mutual exclusion using file-locking, algorithm publication, argument for executable algorithmic notation, Tabula for scientific calculations in various units, threads in J, Easter date calculation, parallel programming
Agenda for NYCJUG 20100713
Excerpts from an article from the ACM's "Transactions on Algorithms" - with attention to the peculiar "conventional" notation for showing replication by using a superscript.
Introduction to Tabula - "Beyond a Scientific Calculator" - with an example about how to figure the energy requirements for launching an elephant into orbit. See the source for this.
Some talks that were given at OSCON in July, 2008, including "Plumbing - Parallel Programming for Artists and Makers". The conference this year in Portland, Oregon on July 19-22. This talk, titled "Another Go at Language Design" by Rob Pike, looks interesting.