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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)
20060601