This document is a translation created from a machine translation of the orignal document in Japanese and the help of bilingual contributors!It would not have been possible to complete without the help not only the listed contributors,  the Ruby Core mailing list and Yukihiro Matsumoto (Matz).
The latest version is always available at   www.hawthorne-press.com
Please send comments, revisions, corrections, and additional material to email@example.com    (Please put  I RHG  in the title)
The original work is Copyright © 2002 - 2004 Minero AOKI.
Translation and Translations and Additions by C.E. Thornton
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike2.5 License.