TI-83 Plus Sequence Graphing 181
The sequence Y= editor displays the
n
Min value because of its relevance
to u(
n
Min), v(
n
Min), and w(
n
Min), which are the initial values for the
sequence equations u(
n
), v(
n
), and w(
n
), respectively.
n
Min in the Y= editor is the same as
n
Min in the window editor. If you
enter a new value for
n
Min in one editor, the new value for
n
Min is
updated in both editors.
Note: Use u(
n
Min), v(
n
Min), or w(
n
Min) only with a recursive sequence, which
requires an initial value.
Selecting Graph Styles
The icons to the left of u(
n
), v(
n
), and w(
n
) represent the graph style of
each sequence (Chapter 3). 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-83 Plus graphs only the selected sequence functions. In the Y=
editor, a sequence function is selected when the = signs of both u(
n
)=
and u(
n
Min)= are highlighted.
To change the selection status of a sequence function, move the cursor
onto the = sign of the function name, and then press Í. The status is
changed for both the sequence function u(
n
) and its initial value u(
n
Min).