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Casio fx-50F PLUS Manual

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E-27
k Trigonometric and Inverse Trigonometric Functions
sin(, cos(, tan(, sin–1(, cos–1(, tan–1(
A Syntax and Input
sin({n}), cos({n}), tan({n}), sin
–1({n}), cos
–1({n}), tan
–1({n})
Example: sin 30 = 0.5, sin
–10.5 = 30 (Angle Unit: Deg)
s30)w
1s(sin–1)0.5)w
A Notes
• These functions can be used in the CMPLX Mode, as long as a complex number is not
used in the argument. A calculation like
i× sin(30) is supported for example, but sin(1 +
i)
is not.
• The angle unit you need to use in a calculation is the one that is currently selected as the
default angle unit.
k Angle Unit Conversion
You can convert a value that was input using one angle unit to another angle unit.
After you input a value, press
1G(DRG') to display the menu screen shown below.
1(D): Degrees
2(R): Radians
3(G): Grads
Example: To convert
π
2 radians and 50 grads both to degrees
The following procedure assumes that Deg (degrees) is currently specifi ed for the default
angle unit.
(1e(π )/2)
1G(DRG')2(R)E
501G(DRG')
3(G)E
sin
(
30
)
05
sin
(
30
)
05
sin
–1
(
0.5
)
30
sin
–1
(
0.5
)
30
DRG
312
DRG
312
(
π
÷2
)
r
90
(
π
÷2
)
r
90
50
g
45
50
g
45
… 28 …


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