Texas Instruments TI-83 PLUS - Manual (Page 184)

TI-83 Plus Sequence Graphing 181
The sequence Y= editor displays the nMin value because of its relevance
to u( nMin) , v( nMin) , and w( nMin) , which are the initial values for the
sequence equations u( n) , v( n) , and w( n) , respectively.
nMin in the Y= editor is the same as nMin in the window editor. If you
enter a new value for nMin in one editor, the new value for nMin is
updated in both editors.
Note: Use u( nMin) , v( nMin) , or w( nMin) 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( nMin)= 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( nMin) .