To Next Page

To Previous Page

20070201

Example To draw the WEB graph for the recursion formula

a n +1 = –3( a n )

+ 3 a n ,

b n +1 = 3 b n + 0.2, and check for divergence or convergence. Use the

following table range and V-Window settings.

Table Range

Start = 0, End = 6,

a 0 = 0.01, a n Str = 0.01, b 0 = 0.11, b n Str = 0.11

V-Window Settings

Xmin = 0, Xmax = 1, Xscale = 1

Ymin = 0, Ymax = 1, Yscale = 1

Procedure

1 m RECUR

2 !3 (V-WIN) a w b w b w c

a w b w b wJ

3 3 (TYPE)2 (

a n +1 )- d 2 ( a n )x +d 2 ( a n )w

d 3 (

b n )+a.c w

4 5 (SET)1 (

a 0 )

a w g w a.ab w a.bb w c

a.ab w a.bb wJ

5 6 (TABL)

6 4 (WEB)

7 w ~w (

a n is convergence)

c w ~w (

b n is divergence)

Result Screen

5-9-8

Graphing a Recursion Formula

Casio CFX9850GBPLUS User Manual

Questions and Answers: