HP 39gs Master Guide

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T
T
H
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V
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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 slightly according to which aplet you are currently using. The
Function aplet contents are covered here but the others differ in only small ways.
Aplets downloaded from the Internet, however, will usually have a
radically different
VIEWS menus created by the person who wrote the
program for the aplet. See page
257 for more information on this
process if you intend to program the calculator. The first image shown
right shows the contents of the
VIEWS menu for an aplet called “Coin
Toss” which investigates probability.
The
VIEWS key normally pops up the menu on the right. We have
already seen the use of the Auto Scale option (see page
89) and this is
probably the one most used. The other options are also very useful at
times.
1( ) =
Shown on the right is the graph of
FX X
2
−1 . If we press the
VIEWS key, the menu above will pop up.
On the pages following we will investigate each of the menu options in
detail.
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HP 39gs Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Gray
Internal memory	0.256 MB

Weight and Dimensions

Weight	249 g
Dimensions (WxDxH)	187 x 94 x 31 mm