E-13
Integration and Differential Calculation
Precautions
• Integration and differential calculations can be performed in the
COMP Mode (
,
1
) only.
• When using a trigonometric function in
f
(
x
), specify Rad as the angle
unit.
Precautions for Integration Calculation Only
• You can specify an integer in the range of 1 to 9 as the number of
partitions, or you can skip input of the number of partitions entirely,
if you want.
• Internal integration calculations may take considerable time to
complete.
• Display contents are cleared while an integration calculation is being
performed internally.
Precautions for Differential Calculation Only
• You can omit input of
Δ
x
, if you want. The calculator automatically
substitutes an appropriate value for
Δ
x
if you do not input one.
• Discontinuous points and extreme changes in the value of
x
can
cause inaccurate results and errors.
Examples
sin 30°= 0.5
v
s
30
=
0.5
sin
−1
0.5 = 30°
v
1
s
(sin
−1
) 0.5
=
30.
sinh 1 = 1.175201194
w
s
(sinh) 1
=
1.175201194
cosh
–1
1 = 0
w1
c
(cosh
−1
) 1
=
0.
π
/2 radians = 90°, 50 grads = 45°
v
(
1e
(
π
)
/
2
)
1G
(DRG
'
)
c
(R)
=
90.
50
1G
(DRG
'
)
d
(G)
=
45.
To calculate
e
5
×
2 to three significant digits (Sci 3)
N
2
(Sci)
3
1i
(
e
x
) 5
*
2
=
2.97×10
2
log 1000 = 3
l
1000
=
3.
To calculate ln 90 (= log
e
90) to three significant digits (Sci 3)
N
2
(Sci)
3
i
90
=
4.50×10
0
1.2
×
10
2
= 120
1.2
*
10
x
=
120.
(−5
2
)
3
= −15625
(
-
5
x
)
^
3
=
−15625.
32
5
= 2
5
1
^
(
x
'
) 32
=
2.
To calculate
'
2
×
3 (= 3
'
2 = 4.242640687...) to three
decimal places (Fix 3)
N
1
(Fix)
3
1
2
*
3
=
4.243
1
1
2
2
3
3
4
4
5
5
6
6
7
7