p;void&nbsp;leftMultByTransposeSelf&#8203;(<a href="../CompressedMatrixBlock.html" title="class in org.apache.sysds.runtime.compress">CompressedMatrixBlock</a>&nbsp;cmb,
                                           <a href="../../matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;ret,
                                           int&nbsp;k)</pre>
<div class="block">Self left Matrix multiplication (tsmm)
 
 t(x) %*% x</div>
<dl>
<dt><span class="paramLabel">P