ecomposition
#&gt; $values
#&gt; [1] 2 2 0
#&gt; 
#&gt; $vectors
#&gt;      [,1]          [,2]       [,3]
#&gt; [1,]    1 -1.000000e+00 -0.7071068
#&gt; [2,]    0  2.220446e-16  0.0000000
#&gt; [3,]    0  2.220446e-16  0.7071068
#&gt; </div><div class='input'>
</div></pre>
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