
ZPAR stores zoom information: the horizontal and vertical scale
factors, a recenter flag, and (sometimes) a copy of PPAR to be used
by the Zoom-to-Last (ZLflST) operation. ZPAR contains a list with
the following objects;
C h-factor v-facior center-flag
ZPAR
previous PPAR (if any)
PPAR
The HP 48 uses a built-in plot parameter variable named PPAR.
to store the plotting parameters. You normally control the plot
parameters using commands in the PLOT and Fd_.UT OPTIONS forms.
PPAR contains a list wdth the followdng objects:
. ? ymiii e C .r^
?/max indcp res axes ptype depend
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Plotting 22-13
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