Integration Calculations - Casio fx-9860G Series User Manual

k Integration Calculations
To perform integration calculations, fi rst display the function analysis menu and then input the
values using the syntax below.
∫ ∫
( f(x), a, ( f(x), a,
tol) ⇒ tol) ⇒
, ,
b b
As shown in the illustration above, integration calculations are performed by calculating
integral values from
effect calculates the surface area of the shaded area in the illustration.
Example To perform the integration calculation for the function shown
below, with a tolerance of " tol" = 1
∫ ∫
Input the function
A
Input the start point and end point.
b,f,
Input the tolerance value.
bE-e)
w
f x a
# If ( ) < 0 where
calculation produces negative values (surface
area × – 1).
Numerical Calculations
4(CALC)4( ∫
dx
)
∫ ∫
b b
f(x)dx f(x)dx
a a
a b
through for the function
5 5
2 2
(2 (2 + 3 + 4) + 3 + 4)
1 1
f x
( ).
4(CALC)4( ∫
dx
x b
< <
, the surface area
2-5-7
f x a b tol
) , , ,
(
a
( : start point,
∫
b
Area of
a
y f x a
= ( ) where
- 4
E
)cvx+dv+e,
20070201
[OPTN]-[CALC]-[
)
b tol
: end point, : tolerance)
f(x)dx
is calculated
x b f x
< < ) > 0. This in
, and (
∫
dx
]