Texas Instruments TI-83 PLUS - Manual (Page 187)

TI-83 Plus Sequence Graphing 184
Using an initial value u( nMin) = 1 , the sequence above returns
1 , 2 , 4 , 8 , 16 , . . .
Tip: On the TI-83 Plus , you must type each character of the terms. For
example, to enter u( n N 1) , press y [ u ] £ „ ¹ À ¤ .
Recursive sequences require an initial value or values, since they
reference undefined terms.
•
If each term in the sequence is defined in relation to the previous
term, as in
u( n N 1) , you must specify an initial value for the first term.
•
If each term in the sequence is defined in relation to the term that
precedes the previous term, as in
u( n N 2) , you must specify initial
values for the first two terms. Enter the initial values as a list enclosed
in braces ({ }) with commas separating the values.
The value of the first term is 0 and the value of the second term is 1 for
the sequence
u( n) .