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. While
viewing a graph, press
.
The location of the cursor will be the center of the reduced graph. The coordinates of the
cursor appear at the bottom of the screen. Use the cursor to move the blinking
cursor to the desired center and press
. The window settings are adjusted and the function
is graphed in the new widow.
You can zoom out more by repeatedly pressing 
.
Note:The factor by which the graph is magnified is determined
by the x and y factor settings.