Special notes, Examples – HP 48g Graphing Calculator User Manual
Page 315
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plots are usually different than display range (see page
24-3).
HI:
Enter the largest value of the independent variable
that you want
plotted.
Plotting range can be different
than display range (see page 24-3).
DEPND:
Enter the dependent (or second independent) variable.
It will be plotted on the vertical axis.
Lu:
Enter the smallest value of the dependent variable
that you want
plotted.
HI!
Enter the largest value of the dependent variable that
you want
plotted.
STEP:
This determines the
resolution
of the plot. It is the
horizontal distance (in units or pixels—see next field)
between two plotted points. The default step-size for
Truth is an interval equal to 1 pixel.
FTKELS
When checked, the step-size is interpreted to represent
pixels. When unchecked (default) the step-size is
interpreted to represent units.
HIKES
See the Function plot type.
H-TICK
See the Function plot type.
V-TICK
See the Function plot type.
PIXELS
See the Function plot type.
23
Special Notes
■ Unless otherwise specified, every pixel in the display is evaluated.
For a full-size display, this means
EQ
must be evaluated 8,384 times
(compared to 131 times for the average function plot). You can
speed up the plot by specifying a smaller
x
and
y
plotting range
(see Example 2 below).
Examples
Display the conic example plot, PTRN; (*^
+ y^)
mod 2 < 4. If necessary, type in TEACH to install the
EXAMPLES directory then:
Plot Types 23-15