Texas Instruments TI-83 PLUS - Manual (Page 196)

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 N 1) , 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 N 1) but not
u( n N 2) ).
•
It cannot reference n directly.
•
It cannot reference any defined sequence except itself.