Casio FX-CG10 Software User Guide - Page 78
Calculations, Integration Calculation Precautions, Calculation Precautions
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Integration Calculation Precautions • In the function f(x), only X can be used as a variable in expressions. Other variables (A through Z excluding X, r, Ƨ) are treated as constants, and the value currently assigned to that variable is applied during the calculation. • Input of "tol" and closing parenthesis can be omitted. If you omit "tol," the calculator automatically uses a default value of 1E-5. • Integration calculations can take a long time to complete. • You cannot use a first derivative, second derivative, integration, Σ, maximum/minimum value, Solve or RndFix calculation expression inside of an integration calculation term. • In the Math input/output mode, the tolerance value is fixed at 1E-5 and cannot be changed. 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 e k e α e β or 4(MATH)6(g)2(Σ( ) ak e k e α e β 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)+fe a,(K)ecegw Σ Calculation Precautions • 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. 2-32