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