[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Inconsistency of 1-argument QUOTIENT with //,//$
- To: gjc at MIT-MC
- Subject: Re: Inconsistency of 1-argument QUOTIENT with //,//$
- From: Guy.Steele at CMU-10A
- Date: Fri, 31 Jul 81 16:09:00 GMT
- Cc: moon at MIT-MC, bug-lisp at MIT-MC, bug-lispm at MIT-MC, lph at MIT-MC
- In-reply-to: David A. Moon's message of 31 Jul 81 02:31-EST
- Original-date: 31 July 1981 1209-EDT (Friday)
The behavior of QUOTIENT and //$ is entirely analogous to that
of DIFFERENCE and -; they were, after all, invented simultaneously.
The analogy is not spurious; // and - of one argument are each the
inverse operator of the group to which it belongs. // is the
inverse operator for the multiplicative group, and - of the additive
group.
--Guy