4
S
S
O
O
M
M
E
E
K
K
E
E
Y
Y
B
B
O
O
A
A
R
R
D
D
E
E
X
X
A
A
M
M
P
P
L
L
E
E
S
S
Shown below are snapshots of some typical screens (called “views”) which you might see when you press the
keys shown on the previous page.
Exactly what you see depends on which aplet is active at the time.
See
page 14 for an introduction to aplets.
The Function aplet is used below to illustrate this. The normal use of the Function aplet is to graph and
analyze Cartesian functions. Notice at the bottom of the various screens how the meanings of the row of
unlabelled screen keys change in different views.
The
SYMB
key - in this case it is set to graph
3
the function
f
( )
=
x
−
x
2
−
7
x
+
6
.
x
The
PLOT
key - used to graph the function.
(The
PLOT SETUP
view sets the axes.)
The
NUM
key showing a tabular view of the function.
(The
NUM SETUP
view sets table parameters.)
The
APLET
key is used to choose which aplet is active. There are 12
aplets provided with the calculator and more can be downloaded from
the internet.
The
MATH
key gives access to more than a hundred extra functions,
grouped into categories. The view shown right is part of the Probability
section.
10