e> - Size of overlap</dd>
<dd><code>threads</code> - The number of threads to use</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>array of two matrix blocks</dd>
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<pre class="methodSignature">public static&nbsp;<a href="MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>[]&nbsp;stft&#8203;(