Calculating The Sum Of A Sequence - Casio ClassPad 300 User Manual

Calculating the Sum of a Sequence

Perform the following steps when you want to determine the sum of a specific range of the
sequence of a recursion expression or a general term expression.
Example: To calculate the sum of the general term expression
range of 2 <
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], [Σ], [
], -, 1, ,, [
n
[
(3) Press E.
Tip
• For information about the syntax of the "Σ" function, see "2-7 Using the Action Menu".
6-3-6
Recursive and Explicit Form of a Sequence
n < 10
], ,, 2, ,, 1, 0, and then ).
n a n
, ], [
n
20030201 20021201
a n n
E = 2 + 2
n
n a n ], {, 2, +, 2, [
, ], [
n
– 1 in the
n a
, ],
n