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From: fin@norge.unet.umn.edu (Craig A. Finseth)
Newsgroups: comp.sys.handhelds
Subject: 48SX: usage, units, edit
Message-ID: <1491@uc.msc.umn.edu>
Date: 26 Mar 90 19:44:10 GMT
Sender: news@uc.msc.umn.edu
Organization: Univ Netw Serv, Univ of Minn
Lines: 72


I have been seriously programming (well, alright, playing with) my
HP-48 and came across three "helpful hints" that may prove useful to
people:


THE 'usag' FUNCTION

(This is the 'usag' function supplied by HP as part of their PC/Mac/BB
distribution.)  It's neat.  It's helpful.  It hangs my machine in some
cases.  In particular:

	- clear the stack
	- enter a command (e.g., 'COS'
	- run 'usag'

The usag function works fine, but when I exit my calculator hangs.  I
must reset it (ON + menu key 3).  This doesn't happen if the stack was
not empty

	- clear the stack
	- enter anythingg (e.g., 0)
	- enter a command (e.g., 'COS'
	- run 'usag'

Works fine.  Exits fine.


UNITS

I have found an almost convenient way to convert units.  Enter your
from value:

	5_m/s

enter a zero to value with the correct units:

	0_ft/s

add them:

	+

(In keystrokes:

	/>  UNITS  SPEED  5  M/S  0  FT/S +


EDIT

Let' say that you have a big hairy program or expression and you want
to edit it.  You do so using any of the usual methods, and get this
useful menu:

	<-SKIP  SKIP->  <-DEL  DEL->  INS  ^STK

So you edit for a while, keying in some new commands using the menus.
All is well and good, but now what if you want the SKIP and DEL
functions back?

As it turns out, you just do:

	<\  EDIT

and you're all set.

That's all my helpful hints for now...

Craig A. Finseth			fin@unet.umn.edu [CAF13]
University Networking Services		+1 612 624 3375 desk
University of Minnesota			+1 612 626 1002 FAX
130 Lind Hall, 207 Church St SE, Minneapolis MN 55455-0134, U.S.A.