HP 39gs Master Manual page 21

The key pops up a menu from which you can choose various
VIEWS
options. Part of the menu for the Function aplet is shown right.
VIEWS
See page 85 for more detailed information. A summary only is given
below.
Essentially the menu is provided for two purposes...
VIEWS
Intro to the VIEWS menu
Firstly, within the standard aplets (Function, Sequence, Solve etc.) it provides a list of special views available
to enhance the view.
PLOT
For example the standard screen provides a standard graph
PLOT
covering the whole screen, but the menu lets you use a split
VIEWS
screen such as shown right. Information on the menu is given in
VIEWS
the chapter dealing with the Function aplet.
In its second role, the key also has a critical purpose when using aplets which have been downloaded
VIEWS
from the Internet. When a programmed aplet is created for the hp 39gs or hp 40gs, a menu is provided by
the programmer to let you control and use it. During the programming this menu is tied to the key,
VIEWS
replacing the menu normally found on the key.
For example, the snapshot shown right is of a menu taken from
VIEWS
an aplet designed to analyze and graph Time Series data.
The next important key is the key. It allows you to change into
HOME
the view from wherever you are. Above it is the key,
HOME MODES
accessed by pressing first. More detailed information on these
SHIFT
two views follows later.
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