 vector y)</code><br>
The Euclidean distance between x and y</p>
<!-- real; distance; (row_vector x, row_vector y); -->
<p></p>
<p><code>real</code> <strong><code>distance</code></strong><code>(row_vector x, row_vector y)</code><br>
The Euclidean distance between x and y</p>
<!-- real; squared_distance; (vector x, vector y); -->
<p></p>
<p><code>real</code> <strong><code>squared_distance</code></strong><code>(vector x, vector y)</code><br>
The squared Euclidean distance between x and y, defined by <span cla