>end</span>;
0348     <span class="keyword">if</span> (strcmp(varargin{na},<span class="string">'acri'</span>)) <span class="comment">% string</span>
0349         acri = varargin{na+1};
0350         inc = 2;
0351     <span class="keyword">end</span>
0352     <span class="keyword">if</span> (strcmp(varargin{na},<span class="string">'deg'</span>)) <span class="comment">% positive integer.</span>
0353         deg = varargin{na+1};
0354         inc = 2;
0355     <span class="keyword">end</span>;
0356  