Date: Wed, 1 May 1996 18:59:46 0500
ReplyTo: GERALD ZUCKIER <ZUCKIER@CHIME.ORG>
Sender: "SAS(r) Discussion" <SASL@UGA.CC.UGA.EDU>
From: GERALD ZUCKIER <ZUCKIER@CHIME.ORG>
Subject: Re: Exponentiation of Negative Numbers
InReplyTo: <199605011547.PAA29781@magnet.co.uk>
But that sort of gets an arbitrary root. As pointed out, a kth root has k
solutions, just as (1)^.5 = 1 or 1; for square roots of positive numbers we
routinely use the positive one, although forgetting about the other one
sometimes gets us into trouble. Might picking the real root of a negative number
where such exists (odd roots) be just too arbitrary? (Not a rhetorical
question.) On the other hand, how hard would it be for SAS Institute to code up
a complex arithmetic module?
