ion" 
><span class="id">Table&#x00A0;1: </span><span  
class="content">Preconditioner types, corresponding strings and default choices. </span></div><!--tex4ht:label?: x17-160151 -->
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<!--l. 98--><p class="indent" >   <span 
class="cmr-12">Note that the module </span><span class="obeylines-h"><span cl