Re: Possible bug in inverse Trig funcs in ACL

Subject: Re: Possible bug in inverse Trig funcs in ACL
From: Erik Naggum <clerik@naggum.no>
Date: 1998/09/09
Newsgroups: comp.lang.lisp.franz,comp.lang.lisp
Message-ID: <3114373983670895@naggum.no>

* Matt Kressel <Matthew_Kressel@atdc.northgrum.com>
| Secondly, why should four or five implementations return the same number,
| precise to twelve or more places, and another differ on the 9th digit?

  one easy answer is that those four or five use the same implementation of
  `acos' and/or the floating-point parser, such as the system math library.
  
#:Erik
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