org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a>&nbsp;getRootMatrix()</pre>
<div class="block">Get the root of the covariance matrix.
 The root is the rectangular matrix <code>B</code> such that
 the covariance matrix is equal to <code>B.B<sup>T</sup></code></div>
<dl><dt><span class="strong">Returns:</span></dt><dd>root of the square matrix</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../org/apache/commons/mat