Sequence Graphing 6–3
82EAB9~1.DOC TI-83 international English Bob Fedorisko Revised: 10/28/05 9:28 AM Printed: 10/28/05 9:28
M Page 3 of 16
The steps for defining a sequence graph are similar to the steps
for defining a function graph. Chapter 6 assumes that you are
familiar with Chapter 3: Function Graphing. Chapter 6 details
aspects of sequence graphing that differ from function graphing.
To display the mode screen, press z. To graph sequence
functions, you must select
Seq graphing mode before you enter
window variables and before you enter sequence functions.
Sequence graphs automatically plot in
Simul mode, regardless
of the current plotting-order mode setting.
The TI-82 STATS has three sequence functions that you can
enter from the keyboard:
u, v, and w. They are above the ¬, −,
and ® keys.
You can define sequence functions in terms of:
• The independent variable n
• The previous term in the sequence function, such as u(nN1)
• The term that precedes the previous term in the sequence
function, such as u(nN2)
• The previous term or the term that precedes the previous
term in another sequence function, such as u(nN1) or u(nN2)
referenced in the sequence v(n).
Note: Statements in this chapter about u(n) are also true for v(n) and
w(n); statements about u(nN1) are also true for v(nN1) and w(nN1);
statements about u(nN2) are also true for v(nN2) and w(nN2).
Defining and Displaying Sequence Graphs
TI-82 STATS
Graphing Mode
Similarities
Setting Sequence
Graphing Mode
TI-82 STATS
Sequence
Functions u, v,
and w
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