Casio fx-9750G PLUS - Manual (Page 254)

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2. Press w, and the pointer appears at the pointer start point ( a
n
Str = 0.01).
• The Y value for the pointer start point is always 0.
3. Each press of w draws web-like lines on the display.
w
↓
w
↓
This graph indicates that recursion formula a
n +1
= –3 a
n
2 + 3 a
n
is convergent.
Example 2 To determine whether or not the recursion formula b
n +1
=
3 b
n
+ 0.2 is convergent or divergent.
Use the following table range.
Start = 0
End = 6
b
0
= 0.02 b
n
Str = 0.02
Use the View Window parameters from Example 1.
1. Press 6 (TABL) 4 (WEB) to draw the graph.
16 - 3
Editing Tables and Drawing Graphs