Path: csiph.com!usenet.pasdenom.info!gegeweb.org!eternal-september.org!feeder.eternal-september.org!mx04.eternal-september.org!.POSTED!not-for-mail From: Gene Wirchenko Newsgroups: comp.lang.java.programmer Subject: Re: BafflinTransform Date: Thu, 04 Oct 2012 09:35:47 -0700 Organization: A noiseless patient Spider Lines: 18 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Info: mx04.eternal-september.org; posting-host="c0a6a1dc41fc92eb7000e57afbd16211"; logging-data="29344"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/5yroVjeoHQuztkfHysh5L9+UXXV32XP4=" X-Newsreader: Forte Agent 4.2/32.1118 Cancel-Lock: sha1:5HUea9YKmDhcN3NzpqCwiLIrCBg= Xref: csiph.com comp.lang.java.programmer:19101 On Thu, 4 Oct 2012 07:22:30 -0700 (PDT), bob smith wrote: [snip] >It seems like when I want to "tack on" an operation, it is actually a preConcatenate. > >This is counterintuitive to me. > >Also, when you are just doing commutative operations, like just translation, it doesn't matter whether you preConcatenate or concatenate. Matrix multiplication is NOT commutative. [snip] Sincerely, Gene Wirchenko