Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uwm.edu!ux1.cso.uiuc.edu!roundup.crhc.uiuc.edu!crest.crhc.uiuc.edu!conte From: conte@crest.crhc.uiuc.edu (Tom Conte) Newsgroups: comp.sys.handhelds Subject: Re: How accurate is the 48?? Message-ID: <1991May20.172829.23432@roundup.crhc.uiuc.edu> Date: 20 May 91 17:28:29 GMT References: <7174@acorn.co.uk> Sender: news@roundup.crhc.uiuc.edu Reply-To: conte@crest.crhc.uiuc.edu (Tom Conte) Distribution: comp Organization: Center for Reliable and High-Performance Computing, University of Illinois Lines: 21 In article <7174@acorn.co.uk>, asmith@acorn.co.uk (Andy Smith) writes: > [Stuff about FP limitations] > the 48 still suffer from this limitation? > > What say you?? > > Andy No amount of floating-point wizardry will remove such problems completely. The designers of the 28S consulted with Kahan, who won the Turing award in-part for his efforts designing the floating-point format that was used (IEEE/ANSI stadard 754). (The format was designed for a broad class of machines and not solely for the 28S!) So, yes it's bad. But, no, it can't get much better either. ------ Tom Conte Center for Reliable and High-Performance Computing conte@uiuc.edu University of Illinois, Urbana-Champaign, Illinois Fast cars, fast women, fast computers