% -*- texinfo -*-
% @deftypefn {Function File} {} polyvalm (@var{c}, @var{x})
% Evaluate a polynomial in the matrix sense.
%
% @code{polyvalm (@var{c}, @var{x})} will evaluate the polynomial in the
% matrix sense, i.e., matrix multiplication is used instead of element by
% element multiplication as is used in polyval.
%
% The argument @var{x} must be a square matrix.
% @seealso{polyval, poly, roots, conv, deconv, residue, filter,
% polyderiv, polyinteg}
% @end deftypefn