Returns the arcsine, or inverse sine, of a number. The arcsine is the angle whose sine is number. The returned angle is given in radians in the range -pi/2 to pi/2.
Syntax
ASIN(number)
Number is the sine of the angle you want and must be from -1 to 1.
Remark
To express the arcsine in degrees, multiply the result by 180/PI() or use the DEGREES function.
Examples
|
Formula |
Description (Result) |
|
=ASIN(-0.5) |
Arcsine of -0.5 in radians, -pi/6 (-0.5236) |
|
=ASIN(-0.5)*180/PI() |
Arcsine of -0.5 in degrees (-30) |
|
=DEGREES(ASIN(-0.5)) |
Arcsine of -0.5 in degrees (-30) |
