ASIN

Returns the arcsine, or inverse sine, of the specified number. The arcsine is the angle whose sine is the specified number. The returned angle is given in radians in the range [-π/2…π/2].

Syntax

ASIN( Number n ) → Number

Parameters

n

Required. A number representing a sine, in the range [-1…1].

Remarks

To express the arcsine in degrees, multiply the result by 180/PI or use the DEGREES function.

Example

Formula

=ASIN(0.5)
=ASIN(0.5)*180/PI()

See Also

Function Reference
SIN Function
PI Function
RADIANS Function
DEGREES Function