Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!sdd.hp.com!hp-pcd!hpcvra.cv.hp.com!rnews!hpcvbbs!akcs.joehorn From: akcs.joehorn@hpcvbbs.UUCP (Joseph K. Horn) Newsgroups: comp.sys.handhelds Subject: Re: extended real and complex Keywords: how do i use types 21 $ d& 22 (extene dded real/compll dex)??? Message-ID: <27ddd05f:2408.1comp.sys.handhelds;1@hpcvbbs.UUCP> Date: 13 Mar 91 07:40:08 GMT References: <27ddbd5d:2408comp.sys.handhelds@hpcvbbs.UUCP> Lines: 16 Bill Menees asks how to use Long Real and Long Complex numbers in the HP 48SX. The 48 does most of its number crunching internally to 15 digits of accuracy, with a five digit exponent (!!). Only when the calculation is done is it rounded to the usual 12 digits + 3-digit exponent. These 15-digit forms are called Long numbers (or "Extended" in the Programmer's Reference Manual). There are a mess of SYSEVAL addresses that convert to, from, and calculate upon Long numbers. It's all documented in Derek Nickel's VOYAGER program and companion files. VOYAGER is freeware, and may be obtained from EduCALC for the price of disk and shipping etc ($4.95 + whatever); call them at (714) 582-2637 from California, or (800) 677-7001 from the real world. -- Joseph K. Horn -- Peripheral Vision, Ltd. --