HP 48g Graphing Calculator - Manual (Page 344)

3. After all plot parameters are set, press E R A S E D R f i W to draw the
plot. You will only see a portion of the plot in the display.
4. Press
( 4 ^ ( P I C T U R E )
and use the arrow keys to scroll around and
view the larger plot. Press
SICE!
C T U R E )
again to exit scrolling
mode.
To
use
computed
values for plotting
or display ranges:
1. In the PLOT or PLOT OPTIONS form, highlight the range field
whose value you wish to compute.
2 . P r e s s ( N X T
1
C A L C t o p r e p a r e f o r a s i d e - c a l c u l a t i o n o n t h e s t a c k .
3. Perform the desired computation. For example, if you want to use
^ as one endpoint, you would press
4. If it is not already one, convert the result on level 1 to a real
number by pressing f^(-»NUM ).
5. Press OK to return the result to the original field.
24
Saving and Restoring Plots
A plot can consist of several components:
■ The plot picture, a graphic object.
■ The current equation or equations, stored in the reserved variable
EQ.
■ The current plot parameters, set in the PLOT forms, and stored in
the reserved variable PPAR and, in the case of three-dimensional
plot types, VPAR.
m Flag settings that determine plotting or display options.
You have the option to save any or all of these plot components in a
variable so that you may retrieve them at a later time. Here are two
useful approaches:
1. Save just the plot picture—the “result”—in a variable. This is a
simple procedure (see below) but each plot picture uses about one
Kilobyte of memory.
2. Save the current EQ, PPAR, VPAR (if necessary), and flag settings
in a list. The plot can be reconstructed by restoring each of these
to the values contained in the list.
24-6 Advanced Plot Options