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Math.asin() Method

This method returns an implementation-dependent approximation of the arcsine of its parameter.

Syntax

Math.asin(number)

Returns

An implementation-dependent approximation of the arcsine of number, expressed in radians and ranging from - pi/2 to +pi/2.

Usage

This method returns an implementation-dependent approximation of the arcsine of number. The return value is expressed in radians and ranges from -pi/2 to +pi/2. It returns NaN if number cannot be converted to a number, is greater than 1, or is less than -1.

To convert radians to degrees, multiply by 180/Math.PI.

See Also

Math.acos() Method
Math.atan() Method
Math.atan2() Method
Math.cos() Method
Math.sin() Method
Math.tan() Method