tion]<br><a class=none name='wtvariance'><b>wtvariance</b> <i>wts arr <tt>&amp;optional</tt> mn</i> =&gt; <i>result</i></a>
<blockquote><br>



</blockquote>

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<p><br>[Function]<br><a class=none name='xplane'><b>xplane</b> <i>ny nx</i> =&gt; <i>result</i></a>
<blockquote><br>



</blockquote>

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<!-- Entry for YPLANE -->

<p><br>[Function]<br><a class=none name='yplane'><b>yplane</b> <i>ny nx</i> =&gt; <i>resul