16
Scientific Functions
• Some scientific calculations may take longer than
other types of calculations.
• You can start the next calculation after the after the
calculation result displays on screen.
•
π
= 3.14159265359
Trigonometric and Inverse Trigonometric
Functions
• To change the current angle units (degrees,
radians, or grads), press
repeatedly until the
following screen appears.
• Now press the number key (
,
, or
)
corresponding to the angle unit you want to use.
(Note that 90
°
= radians = 100 grads)
• Example 1: sin12
°
34’ 56” = 0.217840422
⋅⋅⋅
⋅⋅⋅
(Deg)
12
34
56
• Example 2: cos( rad) = 0.5
⋅⋅⋅
⋅⋅⋅
(Rad)
3
• Example 3: cos
-1
=0.25
π
(rad)(=
(
rad
)
)
⋅⋅⋅
⋅⋅⋅
(Rad)
2
2
• Example 4: tan
-1
0.789 = 38.27343992
⋅⋅⋅
⋅⋅⋅
(Deg)
0.789
To perform a scientific calculation, press
to
enter COMP mode.
COMP........................................................
Deg
1
Rad
2
Gra
3
π
2
---
π
3
---
2
2
-------
π
4
---
