ASIN

Return the arcsine of a number in radians (-PI/2..PI/2).

value = ASIN(number)

ASN is a synonym. OPTION ANGLE DEGREES makes the result degrees. See also ACOS, ATN.

Example:

PRINT ASIN(1)       ' PI/2

Source: docs/help/asin.txt inmmcore. On the computer, typeHELP ASIN.