Overview Of Steps In Graphing Sequences - Texas Instruments TI-89 Manual Book

Overview of Steps in Graphing Sequences

Graphing
Sequences
Tip: To turn off any stat
data plots (Chapter 16),
press ‡ 5 or use † to
deselect them.
Note: For sequences, the
default style is Square .
Tip: „ Zoom also changes
the viewing window.
Exploring the Graph
Tip: You can also evaluate
a sequence while tracing.
Simply enter the n value
directly from the keyboard.
To graph sequences, use the same general steps used for y(x)
functions as described in Chapter 6: Basic Function Graphing.
Any differences are described on the following pages.
Set Graph mode (3)
to .
SEQUENCE
Also set Angle mode,
if necessary.
Define sequences and,
if needed, initial values
on Y= Editor (¥ #).
Select (†) which
defined sequences to
graph. Do not select
initial values.
Set the display style
for a sequence.
TI-89: 2 ˆ
TI-92 Plus: ˆ
Define the viewing
window (¥ $).
Change the graph
format if necessary.
ƒ 9
— or —
TI-89: ¥ Í
TI-92 Plus: ¥ F
Graph the selected
sequences (¥ %).
From the Graph screen, you can:
¦
Display the coordinates of any pixel by using the free-moving
cursor, or of a plotted point by tracing a sequence.
¦
Use the „
Zoom toolbar menu to zoom in or out on a portion of
the graph.
¦
Use the ‡
toolbar menu to evaluate a sequence. Only
Math
is available for sequences.
1:Value
¦
Plot sequences on Time (the default), Web, or Custom axes.
Chapter 9: Sequence Graphing 141