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Casio SERIES FX-9860G User Manual

Page 110

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20070201

2-5-13

Numerical Calculations

Example 2 To determine the maximum value for the interval defi ned by start

point

a

= 0 and end point

b

= 3, with a precision of

n

= 6 for the

function

y

= –

x

2

+ 2

x

+ 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

,

Ƨ

) 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

fl uctuation 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.