Casio FX-795P User Manual

4-5 Numeric integrations
d
Numeric
integration
is
a
method
of
obtaining
the
approximate
solution
of
f
Example:
:
f(x)dx
for
a
given
function.
(See
figure
below.)
Obtain
the
area
of
the
shaded
portion
shown
in
the
h
Divide
interval
(a;
b).into
n
equal
parts
(n
to
be
an
even
number)
and
obtain
the
shall
be
0.0001
graph
below,
Relative
error
area
by
approximating
the
curve
of
each
minimal
interval
with
a
parabola.
:
(Simpson’s
rule)
y
f(x)
-
f(x) =LNz
;
|
|
|
x
|
nS
a
b
i
|
This
computer
automatically
sets
the
namber
of
divisions
and
outputs
the
results
'
when
the
relative
error
between
the
value
Sp,
when
divided
into
n
parts,
and
the
|
value
Sy_2,
when
divided
into
n-2
parts,
is
within
the
relative
error
range.
:
Displays
results
when
relative
error
Err
>
[Sq
-
Sp-gl.
Even
if
nis
146,
impossi-
|
Operation:
ble
will
be
displayed
indicating
calculation
was
not
possible
if
the
above
expres-
|
sion
is
not
satisfied.
|
|
.
.
|
(E)
(Selects
relative
error
input.)
©
Numeric
Integration
Menu
|
ATE@Eme
(Relative
exor
Numeric
integration
can
be
started
by
selecting
Sim
(pressing
key
(8)
)
from
the
i
TF)
elects
functi
input)
:
s
fun
i
software
menu,
The
numeric
integration
menu
will
be
displayed
as
shown
below.
|
a
w
°
i
input.)
i xe} (Inputs function f (x).)
|
TesfS)e@e
Cnputs
interval.)
#
|
1.2958
|
Here,
§
=
1,2958
is
obtained.
The
following
processes
can
be
selected
from
this
numeric
integration
menu.
(.....
(F(X)
Input
and
calculation
of
function
and
interval
a,
b.
|
S).....
(8)
Confirmation
of
area
'
(E).....
(En)
Input
of-relative
error
range
|
:
76
77

Casio FX-795P Specifications

General

Brand	Casio
Model	FX-795P
Category	Desktop
Language	English