Texas Instruments TI-84 - Manual (Page 158)

Chapter 6: Sequence Graphing 155
• The previous term or the term that precedes the previous term in another sequence
function, such as
u(n
N
1) or u(n
N
2) 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(n N 1) are also true for v(n N 1) and w(n N 1) ; statements about u(n N 2) are also true for
v(n
N
2) and w(n
N
2) .
Displaying the Sequence Y= Editor Displaying the Sequence Y= Editor Displaying the Sequence Y= Editor Displaying the Sequence Y= Editor
After selecting Seq mode, press
o to display the sequence Y= editor.
In this editor, you can display and enter sequences for u(n) , v(n) , and w(n) . Also, you can
edit the value for nMin , which is the sequence window variable that defines the minimum
n value to evaluate.
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.