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6-5 Drawing a Cobweb Diagram
You can use the procedure described here to input a sequence and draw a cobweb diagram.
Example: To graph
Cla
Pad Operation
(1) Start up the Sequence Editor.
• If you have another application running, tap
• If you have the Sequence application running, tap
(2) Tap the [Recursive] tab.
(3) Specify the recursion type by tapping [Type] and then [
(4) Input the recursion expression.
• Tap the input box to the right of
Inputting an Expression in the Sequence Application" to input the following.
n
a
a
[
,
] [
]
n
n
(5) Input the initial value.
(6) Tap
and then [View Window].
• This displays a dialog box for configuring View Window settings.
(7) Configure View Window settings as shown below.
xmin = –2
ymin = –1
(8) After everything is the way you want, tap [OK].
(9) Tap
.
(10) Press
for each
step of the web.
Tip
• On the cobweb graph window, you can draw the cobweb diagram again by selecting Trace on the
Analysis menu.
6-5-1
Drawing a Cobweb Diagram
2
a
n
a
a
=
– 1
,
= 0.5
n
+1
1
2
a
:, and then use the procedures under "6-2
n+
1
xmax = 3
xscale = 1
ymax = 1
yscale = 1
20060301
and then
.
and then [Sequence Editor].
a
a
Type
].
n+
1
1
xdot: (Specify auto setting.)
ydot: (Specify auto setting.)
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