Casio CFX-9850GB PLUS, Руководство пользователя

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20070201
k
Σ
Calculations
[OPTN] - [CALC] - [
Σ
]
To perform
Σ
calculations, fi rst display the function analysis menu, and then input the values
using the syntax below.
K
4
(CALC)
6
(
g
)
3
(
Σ
( )
a
k
,
k
,
α
,
β
,
n
)
(
n
: distance between partitions)
Example To calculate the following:
Use
n
= 1 as the distance between partitions.
A
K
4
(CALC)
6
(
g
)
3
(
Σ
( )
a ,
(K)
x -d a ,
(K)
+f,
a ,
(K)
,c,g,b) w
<Math>
A4
(MATH)
6
( g )
2
(
Σ
( )
a
, (K)
x
-d
a
, (K) +f e
a
, (K) e c f g
w
β
Σ
(
a
k
, k ,
α
,
β
, n )
=
Σ
a
k
= a
α
+
a
α
+1
+........+
a
β
k =
α
β
Σ
(
a
k
, k ,
α
,
β
, n )
=
Σ
a
k
= a
α
+
a
α
+1
+........+
a
β
k =
α
6
Σ
(
k
2
– 3
k
+ 5)
k = 2
6
Σ
(
k
2
– 3
k
+ 5)
k = 2
2-5-10
Numerical Calculations
# The value of the specifi ed variable changes
during a
Σ
calculation. Be sure to keep
separate written records of the specifi ed
variable values you might need later before
you perform the calculation.
# You can use only one variable in the function
for input sequence
a
k
.
# Input integers only for the initial term (
α
) of
sequence
a
k
and last term (
β
) of sequence
a
k
.
# Input of
n
and the closing parentheses can
be omitted. If you omit
n
, the calculator
automatically uses
n
= 1.
# In the Math input mode, the distance between
partitions (
n
) is fi xed at 1 and cannot be
changed.