HP 39g Graphing Calculator - Manual (Page 143)

SHIFT USW
| shift |/ icos
[SHJFTjArA/V
SHIFT
o
Arc sine: sin“ x. Output range is from -90° to 90°, -Tt/2 to
Jt/2, or -100 to 100 grads. Inputs and outputs depend on the
cuiTent angle format. Also accepts complex numbers.
ASIN(va/Me)
Example
ASIN(l) returns 9 0 (Degrees mode).
Arc cosine: cos“'x. Output range is from 0° to 180°, 0 to
7
i, or
0 to 200 grads. Inputs and outputs depend on the current angle
format. Also accepts complex numbers. Output will be
complex for values outside the normal COS domain of
-1
<.t<
1
.
ACOS{value)
Example
ACOS ( 1 ) returns 0 (Degrees mode).
Arc tangent: tan“*x. Output range is from -90° to 90°, 2Tt/2 to
Ji/2, or -100 to 100 grads. Inputs and outputs depend on the
current angle format. Also accepts complex numbers.
ATAN(va/iic)
Example
ATAN {1 ) returns 4 5 (Degrees mode).
Square. Also accepts complex numbers.
vaille^
Example
18^ returns 32 4
Square root. Also accepts complex numbers.
'lvalue
Example
V324 returns 18
Negation. Also accepts complex numbers.
-value
Example
-(
1
,
2
) returns
-
1
, -
2
)
Using mathematical functions 10-5