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Chapter 3: Scientific Calculations
(cosh 1.5 +
sinh 1.5)
2
=
tanh
–1
— =
0.895879734
ln 20 =
2.995732274
log 50 =
1.698970004
e
3
=
20.08553692
10
1.7
=
50.11872336
— + — =
0.309523809
8
–2
– 3
4
× 5
2
=
-2024.984375
(12
3
)
—
=
6.447419591
8
3
=
512.
4.
3.
4! =
24.
10
P
3
=
720.
5
C
2
=
10.
500×25%=
125.
120÷400=?%
30.
500+(500×25%)=
625.
400–(400×30%)=
j ( H $
1.5 +
H v
1.5 ) A e
@ > t (
5
z 7 ) e
i
20 e
l
50 e
@ "
3 e
@ Y
1.7 e
6 @ Z +
7 @
Z e
4 k 5 A e
4 @ B e
5 @ c 2 e
8 m S 2 - 3 m
8 1 e
12 m 3 m 4
@ Z e
@ *
49 - 4 @ D
81 e
@ q
27 e
10 @ e 3 e
500 k 25 @ %
120 z 400 @ %
500 + 25 @ %
400 - 30 @ %
280.
5
7
1
6
1
7
1
4
Key operations Result
49 –
4
81
=
3
27 =
20.08553692
Example