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Description: 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.
Remarks:
To express the arcsine in degrees, multiply the result by 180/PI or use the DEGREES function.
Example:
ASIN(-0.5) = -0.5236 [the arcsine of -0.5 in radians, -pi/6]
ASIN(-0.5)*180/PI() = -30 [the arcsine of -0.5 in degrees]
DEGREES(ASIN(-0.5)) = -30 [the arcsine of -0.5 in degrees]
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