% -*- texinfo -*-
% @deftypefn {Function File} {} @var{vars} = findsym (@var{f}, @var{n})
% Find symbols in expression @var{f} and return them comma-separated in
% string @var{vars}. The symbols are sorted in alphabetic order. If @var{n}
% is specified, the @var{n} symbols closest to 'x' are returned.
%
% Example:
% @example
% symbols
% x=sym('x'); y=sym('y'); f=x^2+3*x*y-y^2;
% vars = findsym (f);
% vars2 = findsym (f,1);
% @end example
%
% This is intended for m****b compatibility, calls findsymbols.
% @end deftypefn
% @seealso{findsymbols}