HP 48g Graphing Calculator - Manual (Page 299)

V P A R contains the current settings that determine the View Volume,
eyepoint, and plotting density for the six plot types for functions
of two variables. See page 23-22 for a full explanation of how its
parameters relate to the plot display.
V P A R is a list of real numbers;
VPAR
V -^!eft
A
right b near h far -^low
Phigh
dfA ¡eft AVright f A ¡eft f Vnght
A
eyept A eyept -^^eyept
A x A Y
Contents of the VPAR List
Element Description Default
^
left
The smallest output (View Volume)
value for the r-axis (width) to be
plotted.
-1
^
right
The largest output (View Volume) value
for the r-axis (width) to be plotted.
1
^ near
The smallest output (View Volume)
value for the y - a x i s (depth) to be
plotted.
-1
l"far
The largest output (View Volume) value
for the y-axis (depth) to be plotted.
1
^
low
The smallest output (View' Volume)
value for the z-axis (height) to be
plotted.
-1
Z high The largest output (View Volume) value
for the z-axis (height) to be plotted.
1
22
Plotting 22-15