Casio FX-CG20 AU

2-33
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, ) 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 1E–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.
<Math input/output mode>
K4(CALC)6(g)3(Σ( )
ak e k e α e β
or
4(MATH)6(g)2(Σ( )
ak e k e α e β
<Linear input/output mode>
K4(CALC)6(g)3(Σ( )
ak , 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
ak.
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