From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,cc4f25d878383cc X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-12-11 16:58:39 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!arclight.uoregon.edu!wn4feed!worldnet.att.net!204.127.198.203!attbi_feed3!attbi.com!rwcrnsc52.POSTED!not-for-mail From: "Mark Lundquist" Newsgroups: comp.lang.ada References: <9v37ru$cdmva$2@ID-25716.news.dfncis.de> <9v4fkq$2bl$1@mvmap66.ciw.uni-karlsruhe.de> <9v5gjl$d9cth$1@ID-25716.news.dfncis.de> <9v5pmr$ftq$1@mvmap66.ciw.uni-karlsruhe.de> Subject: Re: Dimensionality Checking (Ada 20XX) X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Message-ID: <2ZxR7.35081$ER5.394136@rwcrnsc52> Date: Wed, 12 Dec 2001 00:58:38 GMT NNTP-Posting-Host: 204.127.202.212 X-Complaints-To: abuse@attbi.com X-Trace: rwcrnsc52 1008118718 204.127.202.212 (Wed, 12 Dec 2001 00:58:38 GMT) NNTP-Posting-Date: Wed, 12 Dec 2001 00:58:38 GMT Organization: AT&T Broadband Xref: archiver1.google.com comp.lang.ada:17802 Date: 2001-12-12T00:58:38+00:00 List-Id: "Thomas Koenig" wrote in message news:9v5pmr$ftq$1@mvmap66.ciw.uni-karlsruhe.de... > > The logarithm of a unit does not have significance. Decibels are the logarithm of something (actually, a multiple of a logarithm), and that something has units, e.g. (typically) sound pressure in micropascals (a pascal is 1 N/m**2). The astronomical magnitude scale is logarithmic with respect to brightness. pH is the negative log of the moles/L of H+. The Richter magnitude scale is logarithmic. Optical transmission density is logarithmic (don't know the units though). -- mark