Maximum/Minimum Value Calculations - Casio FX-CG20 AU User Manual

• Input integers only for the initial term ( α ) of sequence
n
• Input of and the closing parentheses can be omitted. If you omit
automatically uses
• Make sure that the value used as the final term β is greater than the value used as the initial
term α . Otherwise, an error will occur.
• To interrupt an ongoing Σ calculation (indicated when the cursor is not on the display), press
the A key.
• You cannot use a first derivative, second derivative, integration, Σ, maximum/minimum value,
Solve or RndFix calculation expression inside of a Σ calculation term.
• In the Math input/output mode, the distance between partitions (
changed.
k Maximum/Minimum Value Calculations
After displaying the function analysis menu, you can input maximum/minimum calculations
using the formats below, and solve for the maximum and minimum of a function within interval
a < x < b
.
u Minimum Value
K4(CALC)6(g)1(FMin)
a
( : start point of interval,
u Maximum Value
K4(CALC)6(g)2(FMax)
a
( : start point of interval,
Example
f x
Input ( ).
Input the interval
Input the precision
• In the function
through Z excluding X,
that variable is applied during the calculation.
n
= 1.
f x
(
b
: end point of interval,
f
(
b
: end point of interval,
To determine the minimum value for the interval defined by start
a
point = 0 and end point
y x x
= 2 – 4 + 9
AK4(CALC)6(g)1(FMin)vx-ev+j,
a b
= 0, = 3.
a,d,
n
= 6.
g)w
f x
( ), only X can be used as a variable in expressions. Other variables (A
r
, ) are treated as constants, and the value currently assigned to
and last term ( β ) of sequence
a
k
) , a , b , n )
n
: precision (
, , )
x a b n
),
n
: precision (
b
= 3, with a precision of
2-34
n
, the calculator
n
) is fixed at 1 and cannot be
[OPTN]-[CALC]-[FMin]/[FMax]
n
= 1 to 9))
n
= 1 to 9))
n
= 6 for the function
a
.
k