Angle Units; Trigonometric And Inverse Trigonometric Functions - Casio fx-9750GII User Manual

Engineering Symbol (ESYM)
μ
• {m}/{ }/{n}/{p}/{f} ... {milli (10
• {k}/{M}/{G}/{T}/{P}/{E} ... {kilo (10
18
{exa (10 )}
• {ENG}/{ENG} ... shifts the decimal place of the displayed value three digits to the {left}/{right}
and {decreases}/{increases} the exponent by three.
When you are using engineering notation, the engineering symbol is also changed
accordingly.
• The {ENG} and {ENG} menu operations are available only when there is a calculation result
on the display.

Angle Units

• Be sure to specify Comp for Mode in the Setup screen.
Example
To convert 4.25 rad to degrees:
47.3° + 82.5rad = 4774.20181°
2°20´30˝ + 39´30˝ = 3°00´00˝
2.255° = 2°15´18˝

Trigonometric and Inverse Trigonometric Functions

• Be sure to set the angle unit before performing trigonometric function and inverse
trigonometric function calculations.
(90° = (90° =
• Be sure to specify Comp for Mode in the Setup screen.
Example
cos ( rad) = 0.5
3
2 sin 45° cos 65° = 0.5976724775
•
–1
sin 0.5 = 30°
x x
( when sin = 0.5)
1
* can be omitted.
2
* Input of leading zero is not necessary.
–3
)}/{micro (10
3
)}/{mega (10
243.5070629
4.25
47.3
2
2.255
II
* fx-7400G , fx-9750G
radians = 100 grads) radians = 100 grads)
2 2
2
–6 –9
)}/{nano (10 )}/{pico (10
6 9
)}/{giga (10 )}/{tera (10
Operation
(SET UP)
( ) (ANGL)**
82.5 ( )
( ) (ANGL)**
(° ' ") 0 (° ' ")39
( ° ' " )
( ) (ANGL)**
II
:
Operation
(SET UP)
( ) 3
(SET UP)
45 65
(sin –1 ) 0.5* 2
* fx-7400G
2-13
[OPTN]-[ESYM]
–12
)}/{femto (10
12 15
)}/{peta (10
* (Deg)
(r)
(ANGL)** (r)
(° ' ") 20 (° ' ") 30
(° ' ") 30 (° ' ")
( ) ( DMS)
II
** fx-7400G :
*
*
1
*
II II
, fx-9750G :
–15
)}
)}/
(ANGL)
(Rad)
(Deg)