.\"return the arcsine of a float .DT asin $MUDNAME$ driver help asin .SH Name .SI 5 asin() - return the arcsine of a float .EI .SH Synopsis .SI 5 float asin( float f ); .EI .SH Description .SP 5 5 Returns the arcsine of its argument, `f', measured in radians. .EP .SH See also .SI 5 acos(), atan(), cos(), sin(), tan() .EI