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floor & inexact->exact
Date: Thu Nov 2 20:52:46 1989
From: Alan Bawden <firstname.lastname@example.org>
Subject: another dumb question about numbers
Date: Thu, 2 Nov 89 17:57:49 est
From: Hal Abelson <email@example.com>
Why not have round, floor, ceiling, and truncate produce exact
integers, and provide some other names for the analogous (more
primitive?) operations that do not force exactness?
...If you -expected- an inexact quotient, then
you probably should have written (INEXACT->EXACT (FLOOR (/ P Q))).
Probably not. I don't see how one can be sure that inexact->exact will
return an integer. To be sure one must write (floor (inexact->exact (/ p q))).