Set Zoom Factors
The factor settings determine the factor by which the zoom
in and zoom
out options magnify or reduce a graph, respectively. Press
to view the zoom window.

Press
to select memory.

Press
.
(The set factors option can also be obtained by using the
to select option 4 and pressing
.)

The default factors are 4. This means that the widow dimensions change
by a factor of 4 when zooming in or zooming out. For a standard window

zooming in automatically changes the dimensions to

The zoom factors can be changed to any value greater than or equal to
1, but they do not have to be integers. These factors, along with the current
cursor position, determine the new window settings.