Set Zoom Factors
The factor settings determine the factor by which the zoom
in and zoom out options
magnify or reduce a graph, respectively. While viewing a graph, press
.

Press
.

The default factors are 2.
This means that the window dimensions change by a factor of 2 when zooming in or
zooming out. This means that for a standard window

zooming in automatically changes the dimensions to

and zooming out changes them to

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