Casio fx-9750G Differential/Quadratic Differential, Inte Instrukcja Użytkownika Pobierz pdf (Strona 15)

3-7 Σ Calculations

To perform Σ calculations, first display the function analysis menu, and then input the

values shown in the formula below.

6(g)3(Σ() ak , k ,

, n )

Σ calculation is the calculation of the partial sum of sequence {

ak}, using the follow-

ing formula.

k Example Σ Calculation

Example To calculate the following:

Use n = 1 as the distance between partitions.

Input sequence {

ak}

AK4(CALC)6(g)3(Σ()

aKx-daK+f,

Input variable used by sequence {

ak}

aK,

Input the initial term of sequence {

ak} and last term of sequence {ak}.

c,g,

Input n.

Distance between partitions

Last term of sequence {

}

Initial term of sequence {

}

Variable used by sequence {

}

(ak, k,

, n) =

k = α

S = a

+ a

+........+ a

k = α

– 3k + 5)

k = 2

1 2 ... 10 11 12 13 14 15 16

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Casio fx-9750G Differential/Quadratic Differential, Inte Instrukcja Użytkownika Strona 15