20060301
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
a
n
E =
n
2
+ 2
n
– 1 in the
range of 2
n
10
S\
Cla
ss
Pad Operation
(1) Start up the Sequence Editor.
• If you have another application running, tap
/
and then
.
• If you have the Sequence application running, tap
and then [Sequence Editor].
(2)
Tap (or press)
, [Sequence RUN], [Calc], [
3
], [
n
,
a
n
], [
n
],
C
,
,
D
,
,
,
C
,
[
n
,
a
n
], [
n
],
:
,
,
,
, [
n
,
a
n
], [
n
],
,
.
(3)
Press
.
Tip
• For information about the syntax of the “
3
” function, see “2-8 Using the Action Menu”.
6-3-6
Recursive and Explicit Form of a Sequence
Example: To obtain the
n
-th terms of a system of recursion formulas
a
n
+
1
= 3
a
n
+
b
n
,
b
n
+
1
=
a
n
+ 3
b
n
with the initial conditions
a
1
=2,
b
1
= 1
Summary of Contents for ClassPad 330
Page 11: ...20060301 20090601 ClassPad 330 ClassPad OS Version 3 04 ...
Page 277: ...20060301 3 3 10 Storing Functions 3 Tap AND Plot OR Plot ...
Page 779: ...20090601 S Graph Line Clustered C S Graph Line Stacked E 13 9 2 Graphing ...
Page 780: ...20090601 S Graph Line 100 Stacked F S Graph Column Clustered G 13 9 3 Graphing ...
Page 781: ...20090601 S Graph Column Stacked I S Graph Column 100 Stacked J 13 9 4 Graphing ...
Page 782: ...20090601 S Graph Bar Clustered K S Graph Bar Stacked 9 13 9 5 Graphing ...
