due to</span>
0468         <span class="comment">% numerical inexactness</span>
0469         alp = alpm;
0470         <span class="comment">%x_it=x+alp*dir;</span>
0471         <span class="comment">%x=x_it;</span>
0472         obj.xall=xall0+alp*dir;
0473         <span class="comment">%if (Uequal)</span>
0474     <span class="comment">%  UEQ = u_it + alp*u_dir;</span>
0475         <span class="comment">%end</span>
0476         
0477         bLinesearch = 0;
0478         
0479         <span class="comment">