Using Web Plots; Valid Functions For Web Plots; When You Display The Graph Screen - Texas Instruments TITANIUM TI-89 User Manual

Item Description
X Axis Active only when Axes = CUSTOM, these let you select the
and value or sequence to plot on the x and y axes.
Y Axis
To change any of these settings, use the same procedure that you use to change other
types of dialog boxes, such as the MODE dialog box.

Using Web Plots

Using Web Plots
Using Web Plots Using Web Plots
A web plot graphs
recursive sequence. The examples in this section also show how the initial value can
affect a sequence's behavior.

Valid Functions for Web Plots

Valid Functions for Web Plots
Valid Functions for Web Plots Valid Functions for Web Plots
A sequence must meet the following criteria; otherwise, it will not be graphed properly on
WEB axes. The sequence:
• Must be recursive with only one recursion level;
• Cannot reference n directly.
• Cannot reference any other defined sequence except itself.

When You Display the Graph Screen

When You Display the Graph Screen
When You Display the Graph Screen When You Display the Graph Screen
After you select WEB axes and display the Graph screen, the TI-89 Titanium:
Sequence Graphing
vs. , which lets you study the long-term behavior of a
u(n) u(n N 1)
but not
u(n N 1) u(n N
.
2)
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