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<p><a href="page.php?w=Takens%27_theorem">Takens' theorem</a>):</p>

<p>
:</p>

<p>where  is the time series,  the embedding dimension and  the time delay.</p>

<p>The correlation integral is used to estimate the <a href="page.php?w=correlation_dimension">correlation dimension</a>.</p>

<p>An estimator of the correlation integral is the <a href="page.php?w=correlation_sum">correlation sum</a>:</p>

<p>
:</p>

<p><big>See also</big></p>
<p>
*<a href="page.php?w=Recurrence_quantification_analysis">Recurrence quantification analysis</a></p>

<p><big>References</big></p>
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*</p><p>
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