
0378         ll = varargin{na+1};
0379         inc = 2;
0380     <span class="keyword">end</span>;
0381     <span class="keyword">if</span> (strcmp(varargin{na},<span class="string">'ur'</span>)) <span class="comment">% row vector of length d.</span>
0382         ur = varargin{na+1};
0383         inc = 2;
0384     <span class="keyword">end</span>;
0385     <span class="keyword">if</span> (strcmp(varargin{na},<span class="string">'mg'</span>)) <span class="comment">% row vector of length d.</span>
0