Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!ucsd!ucbvax!JACOBS.CS.ORST.EDU!smithj From: smithj@JACOBS.CS.ORST.EDU (Jeremy Smith) Newsgroups: comp.sys.handhelds Subject: (none) Message-ID: <9011090035.AA23900@jacobs.CS.ORST.EDU> Date: 9 Nov 90 00:35:58 GMT Sender: daemon@ucbvax.BERKELEY.EDU Distribution: inet Organization: The Internet Lines: 110 28/48 FAQs (Frequently Asked Questions) about the HP28C, HP28S, and HP48SX. This file, FAQ2848, is posted monthly on comp.sys.handhelds and will be available on the archive sites listed below. Any additions and corrections please email to smithj@jacobs.cs.orst.edu. HP28 stuff: =========== - To find out the version execute HEX then #A SYSEVAL. It will be 1BB or 1CC. - The version of your HP28S is 2CC HP48 stuff: =========== - To find out the version type ON-D, Backspace, EVAL. Type ON-C to get back to the real world. Also << #30794h SYSEVAL >> - Type ON-x as follows: press ON, press x, release ON, release x. - Flag 19 determines whether 2D makes a vector or a complex number - MEM invokes garbage collection. ON-C gets all memory back, except variables. PICT, last stack, last arg, the stack, etc all use up memory. - Vectored ENTER means that \GaENTER and \GbENTER are executed as follows: (long story, Bill Wickes article available from archive sites soon) - Stopping TAYLR gone mad; ON-C halts any operation & doesn't erase variables. - The pinouts for the serial port are (looking at the it end on, screen facing up) 1-Field Ground 2-Receive 3-Send 4-Signal Ground, and connect to pins 1, 2, 3, 7 on standard db25 pin RS232 connector, or nothing, 2, 3, 5 on a db9 pin connector. - SAD, CHIP48, Tetris, are available at the archives sites listed below. - Press \pi (or \Gp?) \->NUM to get pi. Same for e, i, MINR, MAXR. - Use \->ASC to post binary objects. \->ASC available from archive sites soon. HP28 and 48 stuff: ================== - Flickering display - caused by fluorescent lights. - Split a matrix in rows by using \Gs- - Build a matrix from rows by using \Gs+ - Your calculator is very accurate, but not infinite. Don't expect 'SQ(\v/2)' to be exactly 2. - Mind the values of your symbolic, constant, function evaluation flags. General stuff: ============== - HP's calculator BBS: (503) 750-4448 @ 2400 baud N81, and (503) 750- 3277 @ 9600 baud N81. Also (from Internet sites): >telnet hpcvbbs.cv.hp.com - Ftp sites: (Source of lots of articles, information and neat public domain HP-28 & HP48 programs) (type >ftp site name (or IP address), login as anonymous, password your return address, cd directory, ls to see files, set binary, get filename to transfer file to your system) Site Name IP address directory (Key Files) ----------------- ------------ ------------ ----------- calvin.stanford.edu (hp48archive) funic.funet.fi pub/misc/hp48sx pub/misc/hp28sx gmuvax2.gmu.edu 129.174.1.8 new/hp48sx hpcvaaz.cv.hp.com 15.255.72.15 pub hpcvbbs.cv.hp.com 15.224.72.16 pub (readme) vega.hut.fi /pub/misc/hp48sx/asap/chip48-Z.25-bin.Z wuarchive.wustl.edu /systems/hp48sx - handhelds Mail Servers: (This is currently forwarded to comp.sys.handhelds) To join mailing list send message SUBSCRIBE HANDHELDS real-name To abdicate from mailing list send message UNSUBSCRIBE HANDHELDS (where real-name is your name) to MAILSERV@GAC.EDU or MAILSERV@GACVAX1.BITNET To post a message for the mailing list, send it to HANDHELDS@GAC.EDU (Internet) or HANDHELDS@GACVAX1.BITNET (Bitnet) To: wscott@ecn.purdu.edu Subject: HP-MAIL-SERVER send HELP (help on using this server) HP28 (HP-28 files) send INDEX (index of files) - hp48sx and accessories available by mailorder from: EduCalc Mail Store (714) 582-2637 Elek-Tek (800) 621-1269 27953 Cabot Road 6557 North Lincoln Avenue Laguna Niguel, CA 92677 USA Chicago Illinois 60645-3986 (800) 677-7001 fax: (714) 582-1445 (312) 677-7660 fax: (312) 677-7168 HP48sx rev. E in stock $279.95 HP48sx rev. E in stock $249.00 Calculators, Inc. Minneapolis (612) 866-8908 HP48sx $248.50