Casio fx9750G - Angle Units; Trigonometric and Inverse Trigonometric Functions

55
kk
kk
k Angle Units
• Once you specify an angle unit, it remains in effect until you specify a different
one. The specification is retained even if you switch power off.
• Be sure to specify “Comp” for Calculation/Binary, Octal, Decimal, Hexadecimal
Setting Mode.
Example Operation Display
To convert 4.25 rad to degrees: !Zcccc
1(Deg)J4.25K6(g)
5(ANGL)2(r)w 243.5070629
47.3° + 82.5rad = 4774.20181° 47.3+82.52(r)w 4774.20181
kk
kk
k Trigonometric and Inverse Trigonometric Functions
• Be sure to set the angle unit before performing trigonometric function and inverse
trigonometric function calculations.
• Be sure to specify “Comp” for Calculation/Binary, Octal, Decimal, Hexadecimal
Setting Mode.
Example Operation Display
sin 63° = 0.8910065242 !Zcccc
1(Deg)J
s63w 0.8910065242
cos (
π
rad) = 0.5 !Zcccc
3
2(Rad)J
c(!7/d)w 0.5
tan (– 35gra) =
– 0.6128007881 !Zcccc
3(Gra)J
t-35w –0.6128007881
2 • sin 45° × cos 65°
= 0.5976724775 !Zcccc
1(Deg)J
2*s45*c65w*
1
0.5976724775
cosec 30° =
1
= 2 1/s30w 2
sin30°
sin
-1
0.5 = 30°
(x when sinx = 0.5) !S0.5*
2
w
30
*
1
* can be omitted.
*
2
Input of leading zero is not necessary.
P.53
P. 5
Function Calculations 2 - 3
P. 5
π
(90° = ––– radians = 100 grads)
2
P. 6