.\"return the arctangent of a float .TH atan 3 "5 Sep 1994" MudOS "LPC Library Functions" .SH NAME atan() - return the tangent of a float .SH SYNOPSIS float atan( float f ); .SH DESCRIPTION Returns the arctangent of its argument, `f', measured in radians. .SH SEE ALSO acos(3), asin(3), cos(3), sin(3), tan(3)