##-
# Author: Brian Tiffin
# Dedicated to the public domain
#
# Date: October, 2016
# Modified: 2016-10-08/19:06-0400
##+
#
# atan.icn, demonstrate the atan function
#
procedure main()
    write("atan(r): -pi/2 to pi/2, Range: -1.0 <= x <= 1.0")
    every r := -1.0 to 1.0 by 0.25 do {
        write(left("atan(" || r || ")", 24), " = ", atan(r), " radians")
    }
end