Does anyone know what the variables that allow me to have a calculated
output based on the inputs on the stack is called? I'm trying to write
up some scripts for me to carry out repeating calculations faster when
I'm away from my computer and only with my calculator. Thanks.

On Apr 2, 11:07 pm, ssylee gmail.com> wrote:

Never mind about the last question. I know that I want to get started
on User-RPL programming on the HP-50g. However, the user's manual
doesn't seem to be very clear on some parts and I can't find any
understandable guides out there. Does anyone know where I can look for
a good guide?

On Thu, 03 Apr 2008 01:07:31 -0500, ssylee wrote:

Programs?

Are you referring in particular to "User-defined functions"?

It's not necessary to follow that style, because any program at all
can use data from the stack; a "UDF" is basically a program
which can be treated as a function within an algebraic formula, e.g.:

'Stan(x,y,z)=z^2-x^2-y^2' DEFINE

creates a program named 'Stan'
which takes its three arguments from the stack
and evaluates the given expression;
when you recall the program itself to the stack,
you will see how a "UDF" in particular looks,
but the following simpler program could also be used:

\<< SQ ROT SQ ROT SQ + - \>>

[r->] [OFF]

On Apr 3, 12:11 am, "John H Meyers" wrote:

On Thu, 03 Apr 2008 ssylee wrote:

IMO, HP wrote a bit better for the HP48G;
programming in UserRPL is still pretty much the same:

http://www.hpcalc.org/search.php?query=hp+48g+series+guide

Also Chapters 1 & 2 of the Advanced Users' Reference (AUR)
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00554621/c00554621.pdf

Training guides?
http://h20331.www2.hp.com/Hpsub/downloads/hp50gPDFfiles.zip