HP 39gs - Manual (Page 53)

Aplets and their views 2-13
To set zoom factors 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.
Other views for scaling and splitting the graph
The preset viewing options menu ( ) contains
options for drawing the plot using certain pre-defined
configurations. This is a shortcut for changing Plot view
settings. For instance, if you have defined a trigonometric
function, then you could select
Trig to plot your function
on a trigonometric scale. It also contains split-screen
options.
In certain aplets, for example those that you download
from the world wide web, the preset viewing options
menu can also contain options that relate to the aplet.
VIEWS menu
options
Press , select an option, and press .
Option Meaning
Plot-
Detail
Splits the screen into the plot and a
close-up.
Plot-Table Splits the screen into the plot and
the data table.
Overlay
Plot
Plots the current expression(s)
without erasing any pre-existing
plot(s).
HP 39gs English.book Page 13 Wednesday, December 7, 2005 11:24 PM