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Re: Unary /
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From: |
Andreas Schwab |
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Subject: |
Re: Unary / |
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Date: |
Thu, 15 Oct 2015 14:09:52 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
David Kastrup <address@hidden> writes:
> I was surprised to discover that unary / does not work analogously to
> unary -, namely creating the multiplicative inverse.
>
> In Elisp, (/ 2.0) returns 2.0. In Common Lisp
> <URL:http://www.lispworks.com/documentation/lw50/CLHS/Body/f_sl.htm>
> (and in Scheme), this returns 0.5.
>
> Any reason for that? The Elisp behavior does not appear overly useful.
Probably because before Emacs supported floats this wasn't such a useful
operation.
Andreas.
--
Andreas Schwab, SUSE Labs, address@hidden
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
- Unary /, David Kastrup, 2015/10/15
- Unary /, Stephen J. Turnbull, 2015/10/15
- Re: Unary /, David Kastrup, 2015/10/15
- Re: Unary /, Tassilo Horn, 2015/10/15
- Re: Unary /, David Kastrup, 2015/10/15
- Re: Unary /, Stefan Monnier, 2015/10/15
- Re: Unary /, David Kastrup, 2015/10/15
- Re: Unary /, Stefan Monnier, 2015/10/15
- Re: Unary /, Paul Eggert, 2015/10/15
Re: Unary /,
Andreas Schwab <=