akcs.bmenees@hpcvbbs.UUCP (bill menees) (03/13/91)
I know types 21 and 22 are extend Ded precision types but how do I use them ? Is there a syseval theat will use toDh these to calculate with extended precision? Basically i'm wondering if their is some way to get more than 12 sigfigs shown and used in a calciulation ??? Why are these object types there???
akcs.joehorn@hpcvbbs.UUCP (Joseph K. Horn) (03/13/91)
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. --
akcs.bmenees@hpcvbbs.UUCP (bill menees) (03/14/91)
Thanks for the quick response Joe. Looks like I'll be spending that $4.95 after all. Also thanks for goodies disk 1; you saved me a fortune in long dis. bills as I only have a 1200 baud modem. Hurry up and put another together and save me more. Put my base convertors and memory grapher on there (under user.programs). I have given the mem grapher to about 50 people at sckDhool and they all like it. ...anyway, thanks for your help and response.