Casio – Casio FX-CG10 User Manual
Page 79
CASIO
2-33
• Input integers only for the initial term (
α ) of sequence
a
k
and last term (
β ) of sequence
a
k
.
• Input of
n
and the closing parentheses can be omitted. If you omit
n
, the calculator
automatically uses
n
= 1.
• 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 (
n
) is fixed at 1 and cannot be
changed.
k Maximum/Minimum Value Calculations
[OPTN] - [CALC] - [FMin]/[FMax]
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)
f
(
x
) ,
a
,
b
,
n
)
(
a
: start point of interval,
b
: end point of interval,
n
: precision (
n
= 1 to 9))
u Maximum Value
K4(CALC) 6( g) 2(FMax)
f
(
x
) ,
a
,
b
,
n
)
(
a
: start point of interval,
b
: end point of interval,
n
: precision (
n
= 1 to 9))
Example
To determine the minimum 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
=
x
2
– 4
x
+ 9
Input
f
(
x
).
AK4(CALC) 6( g) 1(FMin) vx-ev+j,
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.