E-22
For the
former case,
divide integral
intervals
as small as
possible.
For the
latter case,
separate the
positive and
negative values. Following these tips will allow you to
obtain results from calculations with greater accuracy
and will also shorten the calculation time.
Performing differential calculations
1. Press
@
G
.
2. Specify the following parameters: function with
variable
x, value of x, and minute interval (dx).
You do not need to specify the minute interval. If the
minute interval is not specifi ed, it will automatically
be set to 10
−
5
(while x = 0), or | x | × 10
−
5
(while x
≠ 0).
3. Press
=
.
d
(
x
4
−
0.5
x
3
+
6
x
2
)
⎯
dx
@
G
;
X
m
4
r
&
0
.
5
;
X
@
1
+
6
;
X
A
(
x
= 2
d
x
= 0.00002
r
2
=
50.
(
x
= 3
d
x
= 0.001
l
l
N
3
H
0
.
001
=
130.5000029
o
@
G
;
X
m
4
&
0
.
5
;
X
@
1
+
6
;
X
A
H
2
)
=
50.
l
l
N
3
H
0
.
001
=
130.5000029
y
x
b
xx
xx
a
0
13
2
y
a
b
x
x
x
x
x
1
0
2
3
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