remove Author: jwe and Adapted-by: jwe lines from source files These lines have little meaning now in the age of modern version control systems. Files affected: url-transfer.cc, url-transfer.h, acot.m, acoth.m, acsc.m, acsch.m, asec.m, asech.m, cot.m, coth.m, csc.m, csch.m, sec.m, sech.m, cart2pol.m, cart2sph.m, deal.m, fliplr.m, flipud.m, int2str.m, logspace.m, num2str.m, pol2cart.m, rot90.m, sortrows.m, sph2cart.m, waitbar.m, doc.m, hsv2rgb.m, rgb2hsv.m, beep.m, isstr.m, setstr.m, strmatch.m, cond.m, rank.m, trace.m, bug_report.m, cast.m, delete.m, dir.m, list_primes.m, ls.m, ls_command.m, menu.m, pack.m, recycle.m, substruct.m, version.m, glpk.m, axis.m, box.m, grid.m, __axis_label__.m, text.m, title.m, view.m, xlabel.m, ylabel.m, zlabel.m, bar.m, barh.m, comet3.m, hist.m, line.m, loglog.m, mesh.m, patch.m, plot.m, polar.m, __bar__.m, __line__.m, __plt__.m, __stem__.m, semilogx.m, semilogy.m, sombrero.m, stairs.m, stem.m, surface.m, __default_plot_options__.m, __gnuplot_drawnow__.m, __next_line_color__.m, __plt_get_axis_arg__.m, __pltopt__.m, clf.m, closereq.m, gca.m, gnuplot_binary.in.m, isfigure.m, meshgrid.m, __gnuplot_draw_axes__.m, __gnuplot_draw_figure__.m, shg.m, addpref.m, getpref.m, ispref.m, loadprefs.m, prefsfile.m, saveprefs.m, rmpref.m, setpref.m, ismember.m, setdiff.m, union.m, hankel.m, hilb.m, vander.m, median.m, std.m, cstrcat.m, isletter.m, str2num.m, strcat.m, oruntests.m, rundemos.m, asctime.m, clock.m, ctime.m, date.m, etime.m, is_leap_year.m.

## Copyright (C) 1994-2019 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 3 of the License, 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, see
## <https://www.gnu.org/licenses/>.

## -*- texinfo -*-
## @deftypefn {} {} acsc (@var{x})
## Compute the inverse cosecant in radians for each element of @var{x}.
## @seealso{csc, acscd}
## @end deftypefn

function y = acsc (x)

  if (nargin != 1)
    print_usage ();
  endif

  y = asin (1 ./ x);

endfunction


%!test
%! rt2 = sqrt (2);
%! rt3 = sqrt (3);
%! v = [pi/6, pi/4, pi/3, pi/2, pi/3, pi/4, pi/6];
%! x = [2, rt2, 2*rt3/3, 1, 2*rt3/3, rt2, 2];
%! assert (acsc (x), v, sqrt (eps));

%!error acsc ()
%!error acsc (1, 2)