ASIN
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.
| 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) |