Casio ClassPad 300 User Manual Page 140

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20021201
2-7-12
Using the Action Menu
uu
uu
u fMax
Function: Returns the maximum point in a specific range of a function.
Syntax: fMax(Exp[,variable] [ ) ]
fMax(Exp,variable,start value,end value[,n] [ ) ]
•“x” is the default when you omit “[,variable]”.
•Negative infinity and positive infinity are the default when the syntax fMax (Exp [,
variable] [ ) ] is used.
•“n” is calculation precision, which you can specify as an integer in the range of 1 to 9.
Using any value outside this range causes an error.
This command returns an approximate value when calculation precision is specified for
n”.
This command returns a true value when nothing is specified for “n”. If the true value
cannot be obtained, however, this command returns an approximate value along with
n = 4.
•Discontinuous points or sections that fluctuate widely can adversely affect precision or
even cause an error.
Inputting a larger number 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 must be greater than the value you
input for the start point. Otherwise an error occurs.
Example: To find the maximum point of –x
2
+ 1 with respect to x
Menu Item: [Action][Calculation][fMax]
Example: To find the maximum point of –x
2
+ 1, when 2 < x < 5
Menu Item: [Action][Calculation][fMax]
Example: To find the maximum point of x
3
– 6x with respect to x,
when –2 < x < 2 and n = 1
Menu Item: [Action][Calculation][fMax]
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