2-5-10

Numerical Calculations

kΣ 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 )

β

Σ(ak, k, α, β, n) = Σ ak = aα + aα +1 +........+ aβ

k = α

(n: distance between partitions)

 

Example To calculate the following: Σ6 (k2 – 3k + 5)

k = 2

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

#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.

20060601