Casio FX-9750G plus User Manual page 253

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Example 2
Draw a graph of
on the horizontal axis, and with the points unconnected.
Use the same View Window parameters as those provided in
Example 1.
6(TABL)6(G·PLT)
(Selects plot type.)
a
)
6(Σ
n
(Draws graph with Σ
axis.)
• To input a different recursion formula after a graph is drawn, press ! Q.
This displays the Recursion Menu where you can input a new formula.
k k k k k Drawing a Convergence/Divergence Graph (WEB graph)
With this feature, you can draw a graph of
terms of linear recursion between two terms, substituted respectively for
y
f
x
the function
=
(
). The resulting graph can then be viewed to determine whether
or not the graph is convergent or divergent.
Example 1
To determine whether or not the recursion formula
a
+ 3
n
Use the following table range.
Start = 0
a
0
b
0
Use the following View Window parameters.
Xmin
Xmax = 1
Xscale = 1
This example assumes that the following two recursion formulas are already
stored in memory.
1. Press 6(TABL) 4(WEB) to draw the graph.
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Editing Tables and Drawing Graphs
a
a
= 2
+ 1 with Σ
n
n
+1
a
on the vertical
n
a
n
+1
is convergent or divergent.
End
= 6
a
= 0.01
Str = 0.01
n
b
= 0.11
Str = 0.11
n
= 0
Ymin
Ymax = 1
Yscale = 1
a
on the vertical axis and
n
f
a
a
a
=
(
) where
and
n
n
+1
n
a
n
= 0
16 - 3
n
are the
y
x
and
in
a
= –3
2
n
+1
225

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