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ASIN Function

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Returns the arcsine of a number, for example, the angle whose sine is number.

Syntax

ASIN(number )

Parameters

Name Required/Optional Data Type Description
number
Required
Numeric
The sine of the angle.

Remarks

The input value must be in the range -1 <= number <= 1, or a #NUM! error is returned. The resulting angle is in the range -PI/2 <= angle <= PI/2 radians (-90 <= angle <= 90 degrees).

Example

ASIN(1)

Returns 90 deg