From: Jacob Sparre Andersen <sparre@nbi.dk>
Subject: Re: Float conversion
Date: Thu, 29 Jul 2010 14:44:28 +0200
Date: 2010-07-29T14:44:28+02:00 [thread overview]
Message-ID: <87tynisbir.fsf@hugsarin.sparre-andersen.dk> (raw)
In-Reply-To: 9e669a3b-1013-4bd1-b372-5f7dfa46d083@f42g2000yqn.googlegroups.com
Henrique <henriquemagalhaes@gmail.com> wrote:
> Why var4 is not equal var1?
> type My_Float is digits 6;
>
> CONVERSION_CONSTANT : constant My_Float := 6076.11;
> CONVERSION_CONSTANT2 : constant My_Float := 1.0 / CONVERSION_CONSTANT;
>
> var3: My_Float := var2/CONVERSION_CONSTANT;
> var4: My_Float := var2*CONVERSION_CONSTANT2;
Basically because the relative precision of My_Float is limited to 1e-6.
In general "=" does not make much sense for floating point types.
Cheers,
Jacob
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Jacob Sparre Andersen Research & Innovation
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next prev parent reply other threads:[~2010-07-29 12:44 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-29 12:23 Float conversion Henrique
2010-07-29 12:44 ` Jacob Sparre Andersen [this message]
2010-07-29 12:46 ` Dmitry A. Kazakov
2010-07-29 15:08 ` Georg Bauhaus
2010-07-29 15:10 ` Georg Bauhaus
2010-07-29 15:35 ` Dmitry A. Kazakov
2010-07-29 18:21 ` Henrique
2010-07-29 19:08 ` Jeffrey R. Carter
2010-07-29 19:15 ` Dmitry A. Kazakov
2010-07-30 1:30 ` Phil Clayton
2010-07-30 8:43 ` Dmitry A. Kazakov
2010-07-30 13:14 ` Phil Clayton
2010-07-30 14:34 ` Dmitry A. Kazakov
2010-07-31 15:12 ` Stephen Leake
2010-08-03 1:07 ` Phil Clayton
2010-08-03 3:31 ` Shark8
2010-08-03 10:38 ` Georg Bauhaus
2010-08-04 7:27 ` Stephen Leake
2010-08-04 16:15 ` Georg Bauhaus
2010-08-04 16:32 ` Phil Clayton
2010-08-04 7:26 ` Stephen Leake
2010-08-04 12:52 ` Robert A Duff
2010-08-04 14:32 ` Dmitry A. Kazakov
2010-08-04 19:36 ` Simon Wright
2010-08-04 19:46 ` Dmitry A. Kazakov
2010-08-04 20:29 ` Georg Bauhaus
2010-08-05 12:05 ` Stephen Leake
2010-08-07 5:54 ` Shark8
2010-08-07 8:56 ` Georg Bauhaus
2010-08-07 13:49 ` Shark8
2010-08-05 10:20 ` Phil Clayton
2010-07-30 13:16 ` Henrique
2010-07-29 15:37 ` Warren
2010-07-29 14:56 ` Georg Bauhaus
2010-07-29 17:56 ` Jeffrey R. Carter
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