 the previous routines are available as methods of the preconditioner object. A</span>
<span 
class="cmr-12">detailed description of them is given in Section</span><span 
class="cmr-12">&#x00A0;</span><a 
href="userhtmlse6.html#x19-180006"><span 
class="cmr-12">6</span><!--tex4ht:ref: sec:userinterface --></a><span 
class="cmr-12">. Examples showing the basic use of</span>
<span 
class="cmr-12">MLD2P4 are reported in Section</span><span 
class="cmr-12">&#x00A0;</span><a 
href="userhtmlsu9.html#x18-170005.1"