Casio – Casio FX-CG10 User Manual
Page 78
CASIO
2-32
Integration Calculation Precautions
• 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 “
tol
” and closing parenthesis can be omitted. If you omit “
tol
,” the calculator
automatically uses a default value of 1
E
–5.
• Integration calculations can take a long time to complete.
• You cannot use a first derivative, second derivative, integration,
Σ , maximum/minimum value,
Solve or RndFix calculation expression inside of an integration calculation term.
• In the Math input/output mode, the tolerance value is fixed at 1
E
–5 and cannot be changed.
k
Σ Calculations
[OPTN] - [CALC] - [
Σ
(]
To perform
Σ calculations, first display the function analysis menu, and then input the values
using the syntax below.
K4(CALC)6(g)3(Σ( )
a
k
e
k
e
α e β
or
4(MATH)6(g)2(Σ( )
a
k
e
k
e
α e β
K4(CALC) 6( g) 3( Σ ( )
a
k
,
k
,
α , β ,
n
)
(
n
: distance between partitions)
Example
To calculate the following:
Use
n
= 1 as the distance between partitions.
AK4(CALC) 6( g) 3( Σ ( ) a,(K)
x-da,(K) +fe
a,(K) ecegw
Σ Calculation Precautions
• The value of the specified variable changes during a
Σ calculation. Be sure to keep separate
written records of the specified variable values you might need later before you perform the
calculation.
• You can use only one variable in the function for input sequence
a
k
.
β
Σ
(
a
k
, k,
α, β, n)
=
Σ
a
k
= a
α
+
a
α
+1
+........+
a
β
k =
α
β
Σ
(
a
k
, k,
α, β, n)
=
Σ
a
k
= a
α
+
a
α
+1
+........+
a
β
k =
α
6
Σ
(
k
2
– 3
k
+ 5)
k = 2
6
Σ
(
k
2
– 3
k
+ 5)
k = 2