Integration Calculations - Casio CFX-9970G User 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
b
the 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.
4("dx) f(x) ,
"
( f (x), a, ,
b tol) %
4("dx) f(x) ,
" "
( f (x), a, b, n)
%
f (x) > 0
, and *. This in effect calculates the surface area of the shaded area in
f (x) < 0
a
* If where
values (surface area ' – 1).
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
through
< x < b
, the surface area calculation produces negative
[OPTN]-[CALC]-[ " dx]
b
"
f (x)dx
is calculated
a
is an integer from 1 through 9)
y = f (x)
for the function
n
n
in N = 2 ,
a x
< <
where
60