225
Editing Tables and Drawing Graphs
16 - 3
Example 2
Draw a graph of
a
n
+1
= 2
a
n
+ 1 with
"
a
n
on the vertical axis and
n
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.)
6
(
"
a
n
)
(Draws graph with
"
a
n
on the vertical
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
a
n
+1
=
f
(
a
n
) where
a
n
+1
and
a
n
are the
terms of linear recursion between two terms, substituted respectively for
y
and
x
in
the function
y
=
f
(
x
). 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
n
+1
= –3
a
n
2
+ 3
a
n
is convergent or divergent.
Use the following table range.
Start = 0
End
= 6
a
0
= 0.01
a
n
Str = 0.01
b
0
= 0.11
b
n
Str = 0.11
Use the following View Window parameters.
Xmin
= 0
Ymin
= 0
Xmax = 1
Ymax = 1
Xscale = 1
Yscale = 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.
Summary of Contents for CFX-9970G
Page 22: ... CFX 9970G ...
Page 452: ...435 1 2 3 4 5 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 453: ...436 Program for Circle and Tangents No 4 Step Key Operation Display 6 7 8 9 10 ...
Page 454: ...437 11 12 13 14 15 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 455: ...438 16 17 18 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 458: ...441 1 2 3 4 5 Program for Rotating a Figure No 5 Step Key Operation Display ...