Xref: utzoo comp.lang.scheme:1824 comp.lang.lisp:4018 Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!think.com!barmar From: barmar@think.com (Barry Margolin) Newsgroups: comp.lang.scheme,comp.lang.lisp Subject: Re: Numerical gotcha's Keywords: Interval-Arithmetic Bignums Rationals Message-ID: <1990Nov23.045847.5660@Think.COM> Date: 23 Nov 90 04:58:47 GMT References: <431@data.UUCP> Sender: news@Think.COM Organization: Thinking Machines Corporation, Cambridge MA, USA Lines: 25 Here are various results on a Symbolics 3600 running Genera 8.0. The "d" is the double-precision exponent indicator, and "e" is the single-precision exponent indicator. Command: (f 77617d0 33096d0) -1.1805916207174113d21 Command: (f 77617e0 33096e0) 6.338253e29 Command: (f 77617 33096) -54767/66192 Command: (f 77617 33096e0) 6.338253e29 Command: (f 77617e0 33096) -6.338253e29 Command: (f 77617d0 33096) -2.3611832414348226d21 Command: (f 77617d0 33096e0) 1.022335026998684d30 Command: (f 77617e0 33096d0) -2.0895373854550075d29 -- Barry Margolin, Thinking Machines Corp. barmar@think.com {uunet,harvard}!think!barmar