From: Ludovic Brenta <ludovic@ludovic-brenta.org>
Subject: Re: Kilogram constant defined in package System.Dim.Other_Prefixes (s-dmotpr.ads)
Date: Tue, 04 Feb 2014 19:19:27 +0100
Date: 2014-02-04T19:19:27+01:00 [thread overview]
Message-ID: <87iosuu4eo.fsf@ludovic-brenta.org> (raw)
In-Reply-To: ed6b75a5-35f1-4348-a200-653b05485dbb@googlegroups.com
Anh Vo <anhvofrcaus@gmail.com> writes:
> The Kilogram constants defined in package System.Dim.Other_Prefixes
> (s-dmotpr.ads) look different compared to others such as Meter,
> Second,... In addition, the values do not match with names in the
> comments on the right side. I would like to know why. By the way, the
> Meter, Kilogram and Second constant are repeated here for easy
> discussion.
Because the base SI unit for weight is not gram, it is kilogram. This
explains the difference in exponents. Also, in s-dimmks.ads, note how
the gram is defined:
ug : constant Mass := 1.0E-09; -- micro (u)
mg : constant Mass := 1.0E-06; -- milli
cg : constant Mass := 1.0E-05; -- centi
dg : constant Mass := 1.0E-04; -- deci
g : constant Mass := 1.0E-03; -- gram
dag : constant Mass := 1.0E-02; -- deka
hg : constant Mass := 1.0E-01; -- hecto
Meg : constant Mass := 1.0E+03; -- mega
--
Ludovic Brenta.
next prev parent reply other threads:[~2014-02-04 18:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-04 17:26 Kilogram constant defined in package System.Dim.Other_Prefixes (s-dmotpr.ads) Anh Vo
2014-02-04 17:44 ` adambeneschan
2014-02-04 18:10 ` G.B.
2014-02-04 18:16 ` adambeneschan
2014-02-04 18:22 ` adambeneschan
2014-02-04 18:19 ` Ludovic Brenta [this message]
2014-02-04 19:44 ` Anh Vo
2014-02-05 7:44 ` Yannick Duchêne (Hibou57)
2014-02-05 9:30 ` AdaMagica
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