ASIN function

Synopsis
This function returns the arcsine, in degrees, of the specified number. The returned value is between -90 and 90, inclusive. If you specify an invalid number, NaN (Not a Number) is returned.
Variations
ASIN(Number)
Returns the arcsine of the specified number.
Parameters
Number

Specifies the number from which to calculate the arcsine. The number must be between -1 and 1, inclusive.

Supported types: Numeric.
Returns
Returned types: Numeric.
Examples
1.

The following example returns 90.

ASIN(1)
2.

The following example returns NaN (Not a Number), since 90 is outside the valid range.

ASIN(90)
3.

The following example returns -90.

ASIN(-1)