% -*- texinfo -*-
% @deftypefn {Function File} {@var{h} = } hammgen (@var{m})
% @deftypefnx {Function File} {@var{h} = } hammgen (@var{m},@var{p})
% @deftypefnx {Function File} {[@var{h},@var{g}] = } hammgen (@var{...})
% @deftypefnx {Function File} {[@var{h},@var{g},@var{n},@var{k}] = } hammgen (@var{...})
%
% Produce the parity check and generator matrices of a Hamming code. The
% variable @var{m} defines the [@var{n},@var{k}] Hamming code where
% @code{@var{n} = 2 ^ @var{m} - 1} and @code{@var{k} = @var{n} - @var{m}}.
% @var{m} must be between 3 and 16.
%
% The parity check matrix is generated relative to the primitive polynomial
% of GF(2^@var{m}). If @var{p} is specified the default primitive polynomial
% of GF(2^@var{m}) is overridden. @var{p} must be a valid primitive
% polynomial of the correct order for GF(2^@var{m}).
%
% The parity check matrix is returned in the @var{m} by @var{n} matrix
% @var{h}, and if requested the generator matrix is returned in the @var{k}
% by @var{n} matrix @var{g}.
%
% @end deftypefn
% @seealso{gen2par}