Integration Calculations - Casio CFX-9850G PLUS Calculations Manual

3-4 Integration Calculations

To perform integration calculations, first display the function analysis menu and
then input the values in one of the formulas shown below.
Gauss-Kronrod Rule
Simpson's Rule
As shown in the illustration above, integration calculations are performed by
calculating integral values from
f (x) > 0
illustration.
k Changing Integration Calculation Methods
This calculator can use either Gauss-Kronrod Rule or Simpson's Rule to perform
P.6 integration calculations. To select a method, display the set up screen and select
either "Gaus" (for Gauss-Kronrod Rule) or "Simp" (for Simpson's Rule) for the
Integration item.
All of the explanations in this manual use Gauss-Kronrod Rule.
60
4( dx) f(x) ,
f(x), a, ,
b tol)
4( dx) f(x) ,
f(x), a, b, n)
*. This in effect calculates the surface area of the shaded area in the
f (x) < 0 a
* When on
values (surface area below the
a , b , tol )
Tolerance
End point
Start point
b
f(x)dx
a
Area of
a , b , n )
Number of divisions (value for
n
End point
Start point
b
n
f(x)dx, N = 2
a
a b
to for the function
< x < b
, the surface area calculation produces negative
x
-axis).
[OPTN]-[CALC]-[ dx]
b
f(x)dx
is calculated
a
is an integer from 1 through 9)
y = f (x)
where
n
n
in N = 2 ,
< <
a x b
, and