HP 50g function plotting

[BruceH]

(05-10-2020 05:07 PM)Cristi Neagu Wrote:  Hello,

Just joined to ask a specific question, because i can't seem to find an answer for it.

Say i have an arithmetic relation either on the stack or stored in a variable. Something like

Code:

'2X^3'

How can i plot it? As far as i can tell, going into the 2D/3D or the Y= "windows" i can only start writing a new one, but there seems to be no way for me to use an already defined function. Is there any easy way to plot an already defined function?

I can see that in the Y= window i can use an equation defined in the current folder, but not a simple function. I can also see that i can store that relation in the Eq variable and it will then show up. Is that the correct way of doing it? Storing functions in the Eq variable and then plotting? Seems more of a hack than anything else...

Thank you.

In ALG mode, from a freshly reset calculator:

1. Type in '2X^3' and press Enter so that it is in the history level one
2. Press Y=
3. Press ADD
4. Press HIST
5. Press ECHO
6. Press Enter
7. Press DRAW
   

Same for RPN mode, except you have to hold right-shift and press Y= otherwise it tries to do whatever is right-shift assigned to the F1 menu position.