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kk
kk
k Σ Calculations
[OPTN]-[CALC]-[Σ ]
To perform Σ calculations, first display the function analysis menu, and then input the values
using the syntax below.
K4(CALC)6(g)3(Σ( ) 
ak , k , 
α
 , 
β
 , n )
○○○○○
Example To calculate the following:
Use 
n = 1 as the distance between partitions.
AK4(CALC)6(g)3(Σ( )a,(K)
x-da,(K)+f,
a,(K),c,g,b)w
<Math>
A4(MATH)6(g)2(Σ( )a,(K)
x-da,(K)+fe
a,(K)ecfgw
2-5-10
Numerical Calculations
6
Σ
 (k
2
 – 3k + 5)
k = 2
# The value of the specified variable changes
during a Σ calculation. Be sure to keep
separate written records of the specified
variable values you might need later before
you perform the calculation.
#You can use only one variable in the function for
input sequence 
ak.
#Input integers only for the initial term (
α
) of
sequence 
ak and last term (
β
) of sequence ak .
#Input of 
n and the closing parentheses can be
omitted. If you omit 
n, the calculator automati-
cally uses 
n = 1.
#In the Math input mode, the distance between
partitions (
n) is fixed at 1 and cannot be
changed.
β
Σ
 (ak, k, 
α
, 
β
, n) = 
Σ
 ak = a
α
 + a
α
+1
 +........+ a
β
k = α
(n: distance between partitions)
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