Integration Calculations - Casio fx-9860G AU User Manual

k k k k k Integration Calculations
To perform integration calculations, first display the function analysis menu and then input
the values using the syntax below.
K4(CALC)4 ( dx) f(x) ,
f(x), a, ,
b tol)
As shown in the illustration above, integration calculations are performed by calculating
integral values from
in 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
AK4(CALC)4(
Input the start point and end point.
b,f,
Input the tolerance value.
bE-e)
w
# If f (x) < 0 where a < x < b, the surface area
calculation produces negative values (surface
area – 1).
Numerical Calculations
b
f(x)dx
a
a b
through for the function
5
2
(2x + 3x + 4) dx
1
f (x)
.
2-5-7
a b tol
, ,
a
tart point,
( : s
Area of
y = f (x)
where
- 4
E
dx
)cvx+dv+e,
20050401
[OPTN]-[CALC]-[ dx]
)
b tol
end point, tolerance)
: :
b
f(x)dx
is calculated
a
f (x) > 0
a < x < b
, and . This