Path: utzoo!utgpu!water!watmath!clyde!att!pacbell!ames!pasteur!cory.Berkeley.EDU!aho From: aho@cory.Berkeley.EDU (Alex Ho) Newsgroups: comp.arch Subject: Re: Trachtenberg System of Math Message-ID: <6821@pasteur.Berkeley.EDU> Date: 27 Oct 88 00:16:22 GMT References: <6232@june.cs.washington.edu> Sender: news@pasteur.Berkeley.EDU Reply-To: aho@cory.Berkeley.EDU.UUCP (Alex Ho) Organization: University of California, Berkeley Lines: 18 In article <6232@june.cs.washington.edu> pardo@cs.washington.edu (David Keppel) writes: >As a kid I read part of a book called "The Trachtenberg System of >Math" or some such. The basic idea was that there were several rules >that could be applied to *all* numbers to do *very* fast (linear in >number of digits?) multiplies and multi-row adds. this system sounds pretty interesting. do you have a reference to the original source, a book or a more recent magazine article, by any chance. thank you very much alex Alex Ho University of California, Berkeley aho@cory.berkeley.edu ...ucbvax!cory!aho