view scripts/elfun/sec.m @ 2325:b5568c31ee2c

[project @ 1996-07-15 22:20:21 by jwe]
author jwe
date Mon, 15 Jul 1996 22:20:21 +0000 (1996-07-15)
parents 949ab8eba8bc
children 8b262e771614
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## Copyright (C) 1996 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING.  If not, write to the Free
## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
## 02111-1307, USA.

## sec (z): compute the secant for each element of z.

## Author: jwe

function w = sec (z)

  if (nargin != 1)
    usage ("sec (z)");
  endif

  w = 1 ./ cos(z);

endfunction