Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!lll-winken!aunro!alberta!ubc-cs!soph.cs.ubc.ca!b2676870 From: b2676870@rick.cs.ubc.ca (wilson w ma) Newsgroups: comp.sys.handhelds Subject: Does the 48sx use BCD? (Was: Re: How accurate is the 48??) Message-ID: <1991May22.031814.10029@soph.cs.ubc.ca> Date: 22 May 91 03:18:14 GMT References: <7174@acorn.co.uk> <1991May21.120147.4627@saaf.se> Sender: news@soph.cs.ubc.ca (Usenet News) Followup-To: comp.sys.handhelds Organization: none Lines: 18 In article <1991May21.120147.4627@saaf.se> pausch@saaf.se (Paul Schlyter) writes: >Of course. THis is a limitation inherent in using BCD representaion for >floating-point numbers. 1/3 is 0.33333333....... infinetley, so it must >be rounded off somewhere. Suppose we round off after 12 digits: >0.333333333333 Now we want to multiply this with 3 - the answer to this >IS 0.999999999999 to 12 decimal places. [deleted...] Are you saying that the 48sx uses BCD? (I posted an article previously asking about floating point radix base and no one answered...) I need to know because I'm translating some code from Numerical Recipes. >Paul Schlyter, Swedish Amateur Astronomer's Society (SAAF) >InterNet: pausch@saaf.se >FidoNet: 2:201/600.2 George