Casio fx-83MS - Manual (Page 20)

E-18
k Trigonometric/Inverse Trigonometric
Functions
• To change the default angle unit (degrees, radians,
grads), press the F key a number of times until you
reach the angle unit setup screen shown below.
1 2 3
Deg Rad G r a
• Press the number key ( 1 , 2 , or 3 ) that corresponds
to the angle unit you want to use.
(90
° =
radians = 100 grads)
• Example 1: sin 63
°52o41ǥ ҃ 0.897859012
q
.....
1 (Deg)
S 63 I 52 I 41 I =
π
2
• Example 3 : cos
Ҁ1 ҃
q
.....
2 (Rad)
A V
R
L 2 \ 2
T
= g \ A x =
0.25
π (rad)
(
҃ (rad)
)
π
4
2
2
• Example 2: cos
(
rad
)
҃ 0.5
q
.....
2 (Rad)
W
R
A x \ 3
T
=
π
3
• Example 4: tan
Ҁ1
0.741
҃ 36.53844577 °
q
.....
1 (Deg)
A g 0.741 =
k Hyperbolic/Inverse Hyperbolic
Functions
• Example 1: sinh 3.6
҃ 18.28545536 M S 3.6 =
• Example 2: sinh
Ҁ1
30
҃ 4.094622224
M A j 30 =