t common denominator</dd>
<dt class="col-md-4"> <samp>hypot(</samp><var>x</var>,<var>y</var><samp>)</samp></dt><dd class="col-md-8"> the square root of x<sup>2</sup>+y<sup>2</sup></dd>
<dt class="col-md-4"> <samp>if(</samp><var>condition</var>, <var>nonzero-statements</var>, <var>zero-statements</var><samp>)</samp></dt><dd class="col-md-8"> interpret expression depending on condition</dd>
<dt class="col-md-4"> <samp>int(</samp><var>x</var><samp>)</samp></dt><dd class="col-md-8"> greatest integer function (r