From: "Hans Åberg" <haberg-1@telia.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Cc: Pablo Rodriguez <oinos@gmx.es>
Subject: Re: integer displayed as .0 float in Lua-5.3
Date: Thu, 9 Aug 2018 22:20:11 +0200 [thread overview]
Message-ID: <A997B15F-4E6B-4108-B36C-991B2CD66CB5@telia.com> (raw)
In-Reply-To: <4f671b52-7a2d-ddb6-7272-4173f24b4936@gmx.es>
> On 9 Aug 2018, at 21:20, Pablo Rodriguez <oinos@gmx.es> wrote:
>
> A numeric constant with a radix point or an exponent denotes a
> float; otherwise, if its value fits in an integer, it denotes an
> integer.
>
> Well, "10.0" contains the radix point, but with no arithmetical relevance.
>
> My background is in humanities and I don’t understand the exponent for
> being a float ("10²" contains an exponent
> [https://www.m-w.com/dictionary/exponent], but I would say is an integer
> in all possible worlds [or all the worlds I know ]).
>
> Could anyone explain me what am I missing here or confirm whether this
> is a bug?
It may refer to a floating point number syntax as in C++ [1], where the three cases top there say that there must be a point '.' preceded or followed by at least one digit, or at least one digit followed by an exponent starting with 'e' or 'E'. There are also some examples on that page. Also note that there are no negative numbers, which is because a leading + or - are treated as operators that apply not only to numbers.
1. https://en.cppreference.com/w/cpp/language/floating_literal
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next prev parent reply other threads:[~2018-08-09 20:20 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-09 18:02 Pablo Rodriguez
2018-08-09 18:12 ` Wolfgang Schuster
2018-08-09 19:20 ` Pablo Rodriguez
2018-08-09 19:34 ` Alan Braslau
2018-08-09 20:00 ` Pablo Rodriguez
2018-08-09 20:16 ` Alan Braslau
2018-08-11 9:29 ` Pablo Rodriguez
2018-08-11 17:55 ` Alan Braslau
2018-08-12 14:44 ` Arthur Reutenauer
2018-08-09 20:25 ` Hans Hagen
2018-08-11 10:05 ` Pablo Rodriguez
2018-08-09 20:20 ` Hans Åberg [this message]
2018-08-11 9:33 ` Pablo Rodriguez
2018-08-11 12:21 ` Hans Åberg
2018-08-12 7:49 ` Hans Hagen
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