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   <h3 class="sectionHead"><span class="titlemark">9   </span> <a 
 id="x91-1280009"></a>Utilities</h3>
<!--l. 4--><p class="noindent" >We have some utilities available for input and output of sparse matrices; the
interfaces to these routines are available in the module <span class="obeylines-h"><span class="verb"><span 
class="cmtt-10">psb_util_mod</span></span></span>.
                                                                  

                                                                  
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   &#x00A0;<span class="subsectionToc" >9.1 <a 
href="userhtmlsu78.html#x92-1290009.1"> hb_read &#8212; Read a sparse matrix from a file in the Harwell&#8211;Boeing format</a></span>
<br />   &#x00A0;<span class="subsectionToc" >9.2 <a 
href="userhtmlsu79.html#x93-1300009.2">hb_write &#8212; Write a sparse matrix to a file in the Harwell&#8211;Boeing format</a></span>
<br />   &#x00A0;<span class="subsectionToc" >9.3 <a 
href="userhtmlsu80.html#x94-1310009.3">mm_mat_read &#8212; Read a sparse matrix from a file in the MatrixMarket format</a></span>
<br />   &#x00A0;<span class="subsectionToc" >9.4 <a 
href="userhtmlsu81.html#x95-1320009.4">mm_array_read &#8212; Read a dense array from a file in the MatrixMarket format</a></span>
<br />   &#x00A0;<span class="subsectionToc" >9.5 <a 
href="userhtmlsu82.html#x96-1330009.5">mm_mat_write &#8212; Write a sparse matrix to a file in the MatrixMarket format</a></span>
<br />   &#x00A0;<span class="subsectionToc" >9.6 <a 
href="userhtmlsu83.html#x97-1340009.6">mm_array_write &#8212; Write a dense array from a file in the MatrixMarket format</a></span>
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