TI-83 Plus Sequence Graphing 193
Graphing Web Plots
Graphing a Web Plot
To select Web axes format, press y . ~ Í. A web plot
graphs u(
n
) versus u(
n
N1), which you can use to study long-term
behavior (convergence, divergence, or oscillation) of a recursive
sequence. You can see how the sequence may change behavior as its
initial value changes.
Valid Functions for Web Plots
When Web axes format is selected, a sequence will not graph properly or
will generate an error.
• It must be recursive with only one recursion level (u(
n
N1) but not
u(
n
N2)).
• It cannot reference
n
directly.
• It cannot reference any defined sequence except itself.