From: "François Bobot" <francois.bobot@cea.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Float precision in OCaml
Date: Tue, 1 Aug 2017 13:40:50 +0200 [thread overview]
Message-ID: <71b2ebcd-3932-0c97-0bea-37a28103781b@cea.fr> (raw)
In-Reply-To: <CADK7aFNq0duKz-_+N3HTUQb4POAYKCdMjW7LB5-d0GwKpe8Vtw@mail.gmail.com>
Le 01/08/2017 à 13:18, Nicolás Ojeda Bär a écrit :
> I am not sure this is an issue with OCaml (as you can verify using your favourite C compiler).
Indeed, float_of_string is just strtod in the decimal case.
> Rather, I think IEEE 754 double-precision binary floating-point numbers can only represent numbers
> between 10^{-308} and 10^308 with full decimal digits precision. Numbers smaller than that can only
> be represented with reduced precision.
I don't know what you mean by full decimal digits precision, but the reduced precision is
everywhere. For example: 2.**150.+.1. = 2.**150.
Best,
--
François
next prev parent reply other threads:[~2017-08-01 11:40 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-01 10:47 Viet Le
2017-08-01 11:18 ` Nicolás Ojeda Bär
2017-08-01 11:25 ` Frédéric Bour
2017-08-01 11:45 ` Viet Le
2017-08-01 11:40 ` François Bobot [this message]
2017-08-01 11:42 ` Viet Le
2017-08-01 11:48 ` François Bobot
2017-08-01 12:12 ` Daniel Bünzli
2017-08-01 12:56 ` Viet Le
[not found] ` <etPan.59807b8a.db32dee.123@AirmailxGenerated.am>
2017-08-01 13:17 ` Daniel Bünzli
2017-08-01 13:57 ` Soegtrop, Michael
2017-08-01 14:07 ` Soegtrop, Michael
2017-08-01 15:48 ` Peter Thiemann
2017-08-01 17:12 ` Soegtrop, Michael
2017-08-02 7:41 ` Peter Thiemann
[not found] ` <etPan.5980c173.1234cb4.123@AirmailxGenerated.am>
2017-08-01 18:05 ` Daniel Bünzli
2017-08-02 5:46 ` Viet Le
2017-08-02 8:22 ` Soegtrop, Michael
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