Example

To draw the WEB graph for the recursion formula an+1 = –3(an)2+ 3an, bn+1

 

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

 

table range: Start = 0, End = 6, a0 = 0.01, anStr = 0.01, b0 = 0.11, bnStr

 

= 0.11

1m Recursion

2!3(V-WIN)awbwbwc awbwbwJ

33(TYPE)2(an+1)-d2(an)x+d2(an)w

d3(bn)+a.cw

45(SET)1(a0)

awgwa.abwa.bbwc a.abwa.bbwJ

56(TABLE)

64(WEB-GPH)

7w~w(an is convergence) cw~w(bn is divergence)

•To change the graph line style, press 1(SEL+S) after step 4.

•With WEB Graph, you can specify the line type for a y = f(x) graph. The line type setting is valid only when “Connect” is selected for “Draw Type” on the Setup screen.

11. Graphing a Conic SectionkGraphing a Conic Section

You can use the Conic Graphs mode to graph parabolas, circles, ellipses, and hyperbolas. You can input a rectangular coordinate function, polar coordinate function, or parametric function for graphing.

1. From the Main Menu, enter the Conic Graphs mode.

2. Select the function type.

1(RECT)

.... {rectangular coordinate}

2(POL)....

{polar coordinate}

3(PARAM).... {parametric}

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