Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.albasani.net!fu-berlin.de!uni-berlin.de!news.dfncis.de!not-for-mail From: =?UTF-8?B?U3ZlbiBLw7ZobGVy?= Newsgroups: comp.lang.java.programmer Subject: Re: Autoboxing and Performance ? Date: Sat, 24 Aug 2013 17:20:53 +0300 Lines: 18 Message-ID: References: <5csRt.197906$jW3.50636@fx23.iad> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: news.dfncis.de kBmJ1ldIpw8mAgflPo2CWwVXYUDd+ta0xNwWUYEL+fqNCH5pUrg5QCiCtm Cancel-Lock: sha1:+cE2MVnLU+1eAYSx9JtfKCdMyGA= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130807 Thunderbird/17.0.8 In-Reply-To: Xref: csiph.com comp.lang.java.programmer:25133 Am 24.08.2013 02:16, schrieb Martin Gregorie: > In my book that's algebraic manipulation, i.e. mathematics, not physics. > Physics purports to describe the real world and hence any measurement > must specify the units, while algebra is dimensionless. Yes, but the (rather philosophical and not very fruitful) point that Stefan was trying to make is, that only the description of something (here: the measurement of a distance) requires a unit, and that the thing being described (here: the distance) doesn't actually have a unit. Example: The distance between earth and sun can be described either in meters or in inch. And yes, in many cases make sense to describe something without having a unit and things become meaningless without a unit. Regards, Sven