50g

Thanks for reply, See below
=1=1=1=1=1=1=1=1=1=1=1=1=

On Fri, 07 Sep 2007 13:51:35 -0400
Dave Boyd <boydda@...> wrote:

> aa0p3 wrote:

>
> OK. We will do this in RPN mode with the soft menus set. Go into
>MODE
> and make sure the operating mode is RPN. Then, while still in the
>MODE
> screen,

find the soft key on the bottom labeled FLAGS, and press the

>key
> below it (F1). Either press the down

arrow for a while, or the up

>arrow
> for a shorter while, to highlight flag 117 (Soft MENU) and make sure
>it
> has a check mark beside it (this will affect the way your calculator
> presents options to

you. Instead of "choose from a list" dialogs,

>you
> will get "press a softkey" menus instead -- lots of

good features,

>which
> were designed before the choose menus were added to the OS, work
>better
> this way; you'll thank me later, especially after you use UNITS).
> Press
> the soft key labeled

OK twice to exit the MODE screen.

>
> Key in a program, a simple one we will call 'ADD2'.
>
>

<< 2 + >>

>
> You press, in sequence:
>
> the Right-shift key
> + (this gets

you the "program" brackets)

> 2
> +
> ENTER
>
> The program is on the stack.
>
> Now press the single-quote key in the middle of the keyboard above
>SIN.
> This gets you a pair

of single-quotes with the cursor between them.

>
> Press and hold the yellow ALPHA key, and, while holding

it down,

>press
> the keys with the yellow letters A D D and the number 2, and then
> release the

ALPHA key. Press ENTER.

>
> A variable name is on the stack.
>
> Your stack has:
>

<< 2 + >>

> 'ADD2'
>
> Press the STO key.

=1=1=1=1=1=1=1=1=1=1=1=1=1
My stack has; (after pressing ENTER)

1: :: x<< % 2. x+ x'
ID ADD2 x' x>> ;

When I press 'STO'
the message

! STO Error:
Bad Argument
Type

comes to the screen in a shadowed box.
and the contents of register 1 are still there

=1=1=1=1=1=1=1=1=1=1=1=1=
Note; I had HP41C calculators for many years and appreciatel RPN
However they have quite functioning and are more expensive to fix
than a new 50g.
The 41 had an instruction book that was worth while; the 50 doesn't!

The 48 & 49 manuals that I have found are helpful and close to the 50
BUT the programs do not enter without getting BAD ARGUMENT messages, thus far.
=1=1=1=1=1=1=1=1=1=1=1=1=

> The program is now stored in the variable. Both disappear

from the

>stack.
>
> Press the VAR key to see your variables in the soft-menu area. One
>of
> them, the first on the list probably, will be ADD2.
>
> Press the 5 key, then press the ADD2 key.

The 5 should be replaced

>by 7.
>
> That's a program. Now try this: Press the right-shift, then

press

>the
> ADD2 soft-key. You have used the short-hand method of recalling the
> program from

the variable, so there's your program again on the

>stack.
> Press the down-arrow key to edit it. Use the

arrow keys to move to

>the
> right of the 2, then press the backspace key. Now press the 3 key,
>then
> ENTER.
>
> You now have a program that adds three.
>
> Press the

left-shift key, then press the ADD2 key. You have just

> replaced the old program in ADD2 with this new program

using the

> short-hand method. Verify this in any ways you like.
>
> Now press the single-quote key

again, and press the ADD2 key.

> Instead
> of adding two, it sticks the name ADD2 in the single quotes.

Press

> ENTER and it's on the stack. Fool around with this kind thing.
> Write
> longer, less

trivial programs. Check Wikipedia for RPL. Try the

> control structures you see. Lots of ways to loop and

compare.

> Remember
> that the comparison operator for EQUALS is '==' instead of '='. Ask
> more

questions later! Read the AUR, the Advanced User Reference!

> Have fun!
>
>
> --
>

Dave Boyd

> "If we hit that bullseye, the rest of the dominoes will fall
> like a house of cards.

Checkmate." -Capt. Zapp Brannigan, D.O.O.P.