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