Casio FX-9860GII-L-IH User Guide - Page 107
Example 2, To determine the maximum value for the interval defined by start, point, and end point
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2-5-13 Numerical Calculations Example 2 To determine the maximum value for the interval defined by start point a = 0 and end point b = 3, with a precision of n = 6 for the function y = -x2 + 2x + 2 Input f(x). AK4(CALC)6(g)2(FMax) -vx+cv+c, Input the interval a = 0, b = 3. a,d, Input the precision n = 6. g) w # In the function f(x), only X can be used as a variable in expressions. Other variables (A through Z excluding X, r, θ) are treated as constants, and the value currently assigned to that variable is applied during the calculation. # Input of n and the closing parenthesis can be omitted. # Discontinuous points or sections with drastic fluctuation can adversely affect precision or even cause an error. # You cannot use a differential, quadratic differential, integration, Σ, maximum/minimum value, Solve, RndFix or log ab calculation expression inside of a maximum/minimum calculation term. # Inputting a larger value for n increases the precision of the calculation, but it also increases the amount of time required to perform the calculation. # The value you input for the end point of the interval (b) must be greater than the value you input for the start point (a). Otherwise an error occurs. # You can interrupt an ongoing maximum/ minimum calculation by pressing the A key. # You can input an integer in the range of 1 to 9 for the value of n. Using any value outside this range causes an error. 20050401