Casio ClassPad 300 PLUS - Manual (Page 319)

20050501
Determining the General Term of a Recursion Expression
The following procedure converts the sequence expressed by a recursion expression to the
general term format
a
n = f ( n ).
Example: To determine the general term of the recursion expression a
n + 1
= a
n
+ 2, a
1
= 1
u ClassPad Operation
(1) Start up the Sequence Editor.
• If you have another application running, tap m and then H.
• If you have the Sequence application running, tap O and then [Sequence Editor].
(2) Tap (or press) O, [Sequence RUN], [Calc], [rSolve], [ n , a
n ], [ a
n + 1
], =, [ n , a
n ], [ a
n ], +,
2, ,, [ a
0
, a
1
], [ a
1
], =, 1, and then ).
(3) Press E.
6-3-5
Recursive and Explicit Form of a Sequence
Tip
• For information about the syntax of the “rSolve” function, see “2-7 Using the Action Menu”.