Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book page 111

In this editor, you can display and enter sequences for
value for , which is the sequence window variable that defines the minimum
nMin
evaluate.
The sequence Y= editor displays the
, which are the initial values for the sequence equations
w(nMin)
in the Y= editor is the same as
nMin
one editor, the new value for
Use ,
Note: u(nMin) v(nMin)
value.
Selecting Graph Styles
The icons to the left of
The default in Seq mode is í (dot), which shows discrete values. Dot, ç (line), and è (thick) styles
are available for sequence graphing. Graph styles are ignored in Web format.
Selecting and Deselecting Sequence Functions
The TI-84 Plus graphs only the selected sequence functions. In the Y= editor, a sequence function
is selected when the
=
To change the selection status of a sequence function, move the cursor onto the
function name, and then press Í. The status is changed for both the sequence function
and its initial value
u(nMin)
Defining and Editing a Sequence Function
To define or edit a sequence function, follow the steps in Chapter 3 for defining a function. The
independent variable in a sequence is
In Seq graphing mode, you can enter the sequence variable in either of two ways.
Press „.
•
Press y N
•
You can enter the function name from the keyboard (y [u], y [v], y [w]).
Generally, sequences are either nonrecursive or recursive. Sequences are evaluated only at
consecutive integer values.
positive integer.
value because of its relevance to
nMin
in the window editor. If you enter a new value for
nMin
is updated in both editors.
nMin
, or only with a recursive sequence, which requires an initial
w(nMin)
, , and represent the graph style of each sequence (Chapter 3).
u(n) v(n) w(n)
signs of both and
u(n)=
.
.
n
.
[N]
is always a series of consecutive integers, starting at zero or any
n
, , and
u(n) v(n)
,
u(n)
are highlighted.
u(nMin)=
Chapter 6: Sequence Graphing
. Also, you can edit the
w(n)
value to
n
,
u(nMin) v(nMin)
, and , respectively.
v(n) w(n)
nMin
sign of the
=
, and
in
u(n)
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