HP 39gII User Manual page 50

To set zoom factors
Views menu
options
Plot-Detail
40
1. In the Plot view, press
2. Press .
3. Select Set Factors... and press
4. Enter the zoom factors. There is one zoom factor for
the horizontal scale (XZOOM) and one for the vertical
scale (YZOOM).
Zooming out multiplies the scale by the factor, so that
a greater scale distance appears on the screen.
Zooming in divides the scale by the factor, so that a
shorter scale distance appears on the screen.
V
Press , select an option, and press
Option
Plot-
Detail
Plot-Table
Auto Scale
Decimal
Integer
Trig
The Plot-Detail view can give you two simultaneous views
of the plot.
.
Meaning
Splits the screen into the current plot
and a zoom.
Splits the screen into the plot and a
numeric table.
Rescales the vertical axis so that the
display shows a representative
portion of the plot, based on the
current XRNG. For Sequence and
Statistics apps, auto scale rescales
both axes.
The auto scale process uses the first
selected function only to determine
the best scale to use.
Rescales both axes so each pixel =
0.1 unit. Resets default values for
XRNG(–12.7 to 12.7) and YRNG
(–5.5 to 5.5 ).
Rescales horizontal axis only,
making each pixel=1 unit.
Trig Rescales horizontal axis so 1
pixel = π/48 radians or 3.75
degrees.
.
.
Apps and their views