Ruby Pocket Reference by Michael Fitzgerald This errata page lists errors corrected in the most recent printing. If you have technical questions or error reports, you can send them to booktech@oreilly.com. Please specify the printing date of your copy. This page was updated September 7, 2007. Here's a key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem ?page-number?: reader question or request for clarification (65) First line after paragraph heading "Number of operands"; Different operands take different numbers of operands. should be: Different operators take different numbers of operands.