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## -*- texinfo -*-
## @deftypefn {} {@var{v} =} nonzeros (@var{A})
## Return a column vector of the nonzero values of the matrix @var{A}.
## @seealso{find, nnz}
## @end deftypefn

function v = nonzeros (A)

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

  if (issparse (A))
    [~, ~, v] = find (A);
    v = v(:);
  else
    v = A(find (A));
    v = v(:);
  endif

endfunction


%!assert (nonzeros ([1,2;3,0]), [1;3;2])
%!assert (nonzeros ([1,2,3,0]), [1;2;3])
%!assert (nonzeros (sparse ([1,2;3,0])), [1;3;2])
%!assert (nonzeros (sparse ([1,2,3,0])), [1;2;3])

## Test input validation
%!error nonzeros ()
%!error nonzeros (1, 2)
