Casio FX-9860GII-L-IH User Guide - Page 104
Calculations, OPTN], CALC], Example, To calculate the following, <Math>
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2-5-10 Numerical Calculations 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 n ) β Σ Σ (ak, k, α, β, n) = ak = aα + aα+1 +........+ aβ k = α (n: distance between partitions) Example To calculate the following: 6 Σ (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 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 automatically uses n = 1. # In the Math input mode, the distance between partitions (n) is fixed at 1 and cannot be changed. 2006506401