Zoom Out Option
The zoom out option displays a larger viewing area of the graph by reducing
a portion of the graph around the current cursor location. Press 
.
Press 
.
(The zoom out option can also be obtained by using the 
to select option 3 and pressing 
.)
The location of the cursor will be the center of the reduced graph.
Press .
The window settings are adjusted and the function is graphed in the new
window.
To zoom out again, press ;
the zoom out option is still active. Quit by pressing 
.
Note: The factor
by which the graph is reduced is determined by the x factor and y factor
settings.