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In addition to the views of PLOT, SYMB and NUM (together with their SETUP
views), there is another key which we have so far only used very fleetingly -
the VIEWS key.
It may seem odd to devote an entire chapter to what might appear to be an
inconsequential key. In fact, however, this button is very useful to the
effective use of the calculator, and crucial if you intend to use aplets
downloaded from the internet.
The contents of the VIEWS menu changes according to which aplet you are
currently using. The Function aplet contents are covered here but the others
differ in only small ways.
However, aplets downloaded from the Internet
will usually have a radically different VIEWS
menus created by the person who wrote the
program for the aplet. See page 214 for more
information on this process if you intend to program the calculator.
The VIEWS key pops up the menu on the right.
We have already seen the use of the Auto
Scale option (see page 96) and this is probably
the one most used. The other options are also
very useful at times.
Shown on the right is the graph of
=
−
2
. If we press the VIEWS key,
F X
1( )
X
1
the menu above will pop up.
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