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NAMEasin, asinf, asinl - arc sine function
DESCRIPTIONThe fBasin()fP function calculates the arc sine of fIxfP; that is the value whose sine is fIxfP. If fIxfP falls outside the range -1 to 1, fBasin()fP fails and fIerrnofP is set.
RETURN VALUEThe fBasin()fP function returns the arc sine in radians and the value is mathematically defined to be between -PI/2 and PI/2 (inclusive).
CONFORMING TOSVID 3, POSIX, BSD 4.3, ISO 9899. The float and long double variants are C99 requirements.
SEE ALSOacos(3), atan(3), atan2(3), cos(3), sin(3), tan(3)