E-22
•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 <
• Example 2: cos 
(
       rad
)
 
0.5
q 
.....
 2
(
Rad)
W R A x \ 3 T <
• Example 3: cos
1
 
0.25 
π (rad) 
(
 (rad)
)
q ..... 2 (Rad)
A V R L 2 \ 2 T < g \ A x <
• Example 4: tan
1
 0.741  
36.53844577
 
° q 
.....
 1
(
Deg)
A g 0.741 <
kHyperbolic/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 <
kCommon and Natural Logarithms/Antilogarithms
• Example 1: log 1.23  
0.089905111
R 1.23 <
• Example 2: In 90 (= log
e
 90) = 
4.49980967
T 90 <
ln e  
1
T p P <
• Example 3: e
10 
 
22026.46579
A U 10 <
• Example 4: 10
1.5 
 
31.6227766
A Q 1.5 <
• Example 5: (–2)
4 
 
16
R D 2 T W 4 <
•Negative values included in a calculation must be enclosed in parentheses.
For details, see “Order of Operations” on page 47 for more information.
π
2
π
3
π
4
2
2