User Manual

19990401

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Example To draw the WEB graph for the recursion formula an+1 = –3(an)

+ 3an,

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

following table range and V-Window Settings.

Table Range

Start = 0, End = 6, a0 = 0.01, anStr = 0.01, b0 = 0.11, bn Str = 0.11

V-Window Settings

Xmin = 0, Xmax = 1, Xscale = 1

Ymin = 0, Ymax = 1, Yscale = 1

Procedure

1 m RECUR

2 !K(V-Window) awbwbwc

awbwbwi

3 3(TYPE)c(an+1=)-d2(an )x+d2(an)w

d3(bn)+a.cw

4 5(RANG)1(a0)

awgwa.abwa.bbwc

a.abwa.bbwi

5 6(TABL)

6 4(WEB)

7 1(TRACE)w~w(an is convergence)

cw~w(bn is divergence)

Result Screen

5-9-8

Graphing a Recursion Formula