Casio fx9750G User Manual page 241

16 - 3
Editing Tables and Drawing Graphs
Example 2
• To input a different recursion formula after a graph is drawn, press ! Q. This
k k k k k Drawing a Convergence/Divergence Graph (WEB graph)
With this feature, you can draw a graph of
of linear recursion between two terms, substituted respectively for
function
the graph is convergent or divergent.
Example 1
1( a
)
n
(Draws graph with
axis.)
Draw a graph of
on the horizontal axis, and with the points unconnected.
Use the same View Window parameters as those provided in Exam-
ple 1.
6(TABL)6(G•PLT)
(Selects plot type.)
6(Σ
a )
n
(Draws graph with Σ
axis.)
displays the Recursion Menu where you can input a new formula.
y f x
= ( ). The resulting graph can then be viewed to determine whether or not
To determine whether or not the recursion formula
a
3 is convergent or divergent.
n
Use the following table range.
Start = 0
a
= 0.01
0
b
= 0.11
0
Use the following View Window parameters.
Xmin = 0
Xmax = 1
Xscale = 1
a on the vertical
n
+ 1 with Σ
a a
= 2
n +1 n
a
on the vertical
n
a f a
= (
n
+1
End = 6
a
Str = 0.01
n
b
Str = 0.11
n
Ymin = 0
Ymax = 1
Yscale = 1
a
on the vertical axis and
n
1 2 3 4 5
a a
) where and are the terms
n n n
+1
y
and
a
n
n
6
x
in the
2
a
= –3 +
n
+1
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