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<!--Copyright (C) 1988-2005 by the Institute of Global Environment and Society (IGES). See file COPYRIGHT for more information.-->

<h2><b>sqrt</b></h2><p> 

<code>sqrt(<i>expr</i>) </code><p>

Takes the square root of the result of the <code><i>expr</i></code>. This
function works on both gridded and station data. Values in
<code><i>expr</i></code> that are less than zero are set to missing in the
result. 

<H3>Usage Notes</H3><P>
<H3>Examples</H3><P>