From: Wolfgang Jenkner <wjenkner@inode.at>
To: Jay Belanger <jay.p.belanger@gmail.com>
Cc: 19582@debbugs.gnu.org
Subject: bug#19582: 25.0.50; [PATCH] Calc: glitches with negation of units
Date: Tue, 13 Jan 2015 17:25:23 +0100 [thread overview]
Message-ID: <85387e8x70.fsf@iznogoud.viz> (raw)
In-Reply-To: <851tmyah3n.fsf@iznogoud.viz>
On Tue, Jan 13 2015, Jay Belanger wrote:
> Since 100 and (float 1 2) aren't the same, that might be a bug of some
> kind.
Sure, but
(math-equal 100 '(float 1 2)) => t
and (info "(calc) Predicates") states
-- Function: math-equal x y
Returns true if X and Y are numerically equal, either because they
are `equal', or because their difference is `zerop'. [...]
so, IIUC, mathematically, they are as equal as it gets in calc.
On the other hand, I'm not sure if calculations with (float ...)
are exact (if possible) in calc ?
next prev parent reply other threads:[~2015-01-13 16:25 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-13 14:22 bug#19582: 25.0.50; [PATCH] Calc: glitches with negation of units Wolfgang Jenkner
2015-01-13 15:55 ` Jay Belanger
2015-01-13 16:01 ` Wolfgang Jenkner
2015-01-13 16:06 ` Jay Belanger
2015-01-13 16:25 ` Wolfgang Jenkner [this message]
2015-01-13 16:34 ` Jay Belanger
2015-01-13 16:48 ` Jay Belanger
2015-01-15 23:55 ` Wolfgang Jenkner
2015-01-18 16:29 ` Wolfgang Jenkner
2016-02-23 11:23 ` Lars Ingebrigtsen
2015-01-13 19:39 ` Wolfgang Jenkner
2015-01-13 21:57 ` Jay Belanger
2015-01-28 15:11 ` Jay Belanger
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