RPN explained

[Les Bell]

(03-22-2014 07:43 PM)Dale Reed Wrote:  GREAT explanation in that video. Just wish he had used the bigger disks to represent the sums and products, and marked them with "a", "b", "c", "b c *" and "a b c * +"

Ah, but I'll bet he just happened to have that rod and discs from another lecture on recursive algorithms - the "Tower of Hanoi" problem is a classic of the genre.