Casio fx-350MS User Manual

Page of 40
E-18
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
°5241  0.897859012
q
 
.....
 
1
 (Deg)
S
 63 
I
 52 
I
 41 
I
 
=
π
2
• Example 3 : cos
1

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
1
 0.741
  36.53844577 °
q
 
.....
 
1
 (Deg)
A
 
g
 0.741 
=
Hyperbolic/Inverse Hyperbolic
Functions
• Example 1: sinh 3.6 
18.28545536
M
 
S
 3.6 
=
• Example 2: sinh
1
 30
  4.094622224
M
 
A
 
j
 30 
=