50g

Hello J,

this is what I warned about: the HP 50G is full of RPN, with a little
algebraic input duct-taped onto it.

When you just start entering something over the "EQ" field it expects
Reverse Polish input. That is, when you start to enter X ^ 2 etc… the
^ command failes, because it expcts two operands. Thus the correct way
of entering your equation this way would be X 2 ^ Y 2 ^ +.

Alternatively you can enclose your (algebraic) input in single quotes.
What you enter with that is a single "Algebraic Object", which is then
being parsed for you.

And thirdly you can hit the "edit" (F1) button and enter your equation
graphically. This is the same as in the EQW equation writer.


This kind of choice is common in the 50g. The art in using it is to
choose wisely which is appropriate when.


Get the User's Guide and the Advanced User's Reference from
http://is.gd/kl52 - they are much more comprehensive than the User's
Manual. Also poke around HP's site and hpcalc.org.


Greetings, Matthias



--- In 50g@yahoogroups.com, J <professorman40@...> wrote:
>
> Hello everyone:
>  
> This is ridiculous, but more ridiculus is the User's Manual. How can
I enter an equation on the PLOT SETUP menu? (Left + 2D/3D buttons).