User`s guide

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 1s(sin
−1
) 0.5 = 30.
sinh 1 = 1.175201194 ws(sinh) 1 = 1.175201194
cosh
–1
1 = 0 w1c(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
11
22
33
44
55
66
77