rd">if</span> xz(i)==0,
0040                   fprintf(fid,<span class="string">'%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.3f\r\n'</span>,<span class="keyword">...</span>
0041                       x(i),x(i+1),z(k),z(k+1),M(i,k),Cov(i,k));
0042         <span class="keyword">else</span>
0043                   fprintf(fid,<span class="string">'%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.3f\r\n'</span>,<span class="keyword">...</span>
0044                       x(i),x(i+1),xz(i)-z(k),xz(i)-z(k+1),<span class="keyword">.