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 ,  ) are treated as constants, and the value currently assigned to
that variable is applied during the calculation.
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