10
Example 3.:
Add 15% to 2500
2500
15
Example 4.: Reduce 3500 by 25%
3500
25
Example 5.: If 300 grams are added to a test sample originally
weighing 500 grams, what is the percentage increase in
weight?
500
+
500300
x 100 = 160 (%)
300
500
Example 6.: What is the percentage increase when a temperature
rises from 40 °C to 46 °C?
40
−
4046
x 100 = 15 (%)
46
40
Calculations Using Scientific Functions
Note!
Use the
key to activate COMP mode in order to carry out
scientific function calculations. COMP:
l =3.14159265359
Trigonometric/Inverse trigonometric functions
Example 1.: sin 63°52’41"
o" "
63 52 41
Example 2.:
3
cos
(
rad )
o" "
3
Example 3.:
4
rad
cos
−1
2
2
=
o" "
2 2
Example 4.: tan
−1
0.741
o" "
0.741
2875.
2625.
160.
15.
0.897859012
0.5
0.785398163
0.25
36.53844577
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