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<A NAME=swap_entries>

<TITLE>swap_entries</TITLE></A>
<b><a href=r37_idx.html>INDEX</a></b><p><p>



<B>SWAP_ENTRIES</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
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<P>
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 <P> <H3> 
syntax: </H3>
<em>swap_entries</em>(&lt;matrix&gt;,{&lt;r1&gt;,&lt;c1&gt;},{&lt;r2&gt;, 
&lt;c2&gt;}) 
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<P>
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&lt;matrix&gt; :- a 
<A HREF=r37_0345.html>matrix</A>. 
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&lt;r1&gt;,&lt;c1&gt;,&lt;r2&gt;,&lt;c2&gt; :- positive integers. 
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<em>swap_entries</em>swaps &lt;matrix&gt;(&lt;r1&gt;,&lt;c1&gt;) with 
&lt;matrix&gt;(&lt;r2&gt;,&lt;c2&gt;). 
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<P>
 <P> <H3> 
examples: </H3>
<P><PRE><TT>

swap_entries(A,{1,1},{3,3}); 

  [9  2  3]
  [       ]
  [4  5  6]
  [       ]
  [7  8  1]

</TT></PRE><P>Related functions: 
<A HREF=r37_0617.html>swap_columns</A>, 
<A HREF=r37_0619.html>swap_rows</A>. 
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