Owner manual

Sequence

Example,

continued

■ [VIEWS]

Select Auto Scale {{OK}}

Explore the graph and the

values for N and Ul by

pressing g and [^.

As you trace the graph with the cursor keys, the crosshairs

jump from N:1 to N:2 to N:3, and so on. The values for Ul

change by smaller and smaller amounts until they converge.

NUM

a 1.5

H 1.415557

l.HlHilS

I.HIHBIH

1.41421356237

Scroll down to see that the

values for U] remain the same

for N»6. Therefore, -Jl is

1.41421356237 to 12 digits of

accuracy.

Compare the Stairstep plot (which plots N and Ul (N)) to a

Cobweb plot (which plots Ul(N-l) and U1(N)). Use

autoscaling for the plot. The coordinate values and the

Numeric view are identical to the Stairstep plot.

■ {SETUP-PLOT} [3

Set SEQPLOT to Cobweb.

m {VIEWS}

Select Auto Scale {{OK}}

3-34 Plotting and Exploring Functions