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From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: Cosine of Pi/2.0  (was: Subtle Math Questions)
Message-ID: <1991Apr26.213544.14212@zoo.toronto.edu>
Date: Fri, 26 Apr 1991 21:35:44 GMT
References: <2730@ttardis.UUCP> <22614@lanl.gov>
Organization: U of Toronto Zoology

In article <22614@lanl.gov> jlg@cochiti.lanl.gov (Jim Giles) writes:
>This is one of the first tests I make of a calculator: if it gives
>zero for cosine of _anything_ that can be represented, it probably
>has a bad cosine function.

Well, the HP-48 will give you zero for the cosine of pi/2, but that's
because it represents it as "pi/2", not 1.5707...
-- 
And the bean-counter replied,           | Henry Spencer @ U of Toronto Zoology
"beans are more important".             |  henry@zoo.toronto.edu  utzoo!henry