ss="comment">%                       The default is to use form 1 with TW=3 and K=5</span>
0028 <span class="comment">%</span>
0029 <span class="comment">%            pad            (padding factor for the FFT) - optional (can take values -1,0,1,2...).</span>
0030 <span class="comment">%                    -1 corresponds to no padding, 0 corresponds to padding</span>
0031 <span class="comment">%                    to the next highest power of 2 etc.</span>
0032 <span class="comment">%                       