function y = sec(z)
%SEC    Secant of argument in radians.
%   SEC(X) is the secant of the elements of X.
%
%   Class support for input X:
%      float: double, single
%
%   See also ASEC, SECD.

%   Copyright 1984-2004 The MathWorks, Inc.
%   $Revision: 5.7.4.4 $  $Date: 2004/12/06 16:34:51 $

y = 1./cos(z);