Reference asin()

asin()

Calculates the arc sine of a number.

asin() is the inverse of sin(). It expects input values in the range of -1 to 1. By default, asin() returns values in the range -π ÷ 2 (about -1.57) to π ÷ 2 (about 1.57). If the angleMode() is DEGREES then values are returned in the range -90 to 90.

Examples

Syntax

asin(value)

Parameters

value
Number:

value whose arc sine is to be returned.

Returns

Number: arc sine of the given value.
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