HP 39gII, User Manual

Page: 35 / 355

Apps and their views 25
App views
The HP Apps all utilize the same set of views and it is this
consistency in the use of views that make them easy to
learn and to use. There are three major views, known as
the Symbolic, Plot (Graphic), and Numeric views. These
views are based on the symbolic, graphic, and numeric
representations of mathematical objects and are
accessed through the
Y , P , and M keys near
the top of the keyboard. The SHIFT of these keys provides
access to the view's setup, in which the view is
configured. One additional user-defined view, Info, is
provided to add notes to an app. Finally, the Views key
provides access to any additional, special views an app
may have. Note that not all HP Apps provide all 7 of the
standard views, nor do all of them provide additional
views via the Views key. The scope and complexity of
each app determines its view set. However, the views
provided are based on these seven views and the
additional views provided by the Views key. These views
are summarized below, using the Function app as an
example.
Symbolic view
Press
Y
to display the app’s Symbolic view.
You use this view to define
the function(s) or equation(s)
that you want to explore.
Symbolic setup
Press
S
SETUP-SYMB
to
display the app's Symbolic
setup. The purpose of this
view is to allow you to
overwrite one or more of the
Modes settings for an app. This view is not used by the
Solvers and Explorers, as the few mode settings needed
for each app can already be changed by using menu
keys within the app.