valued.</span>
0010 <span class="comment">%</span>
0011 <span class="comment">%   The algorithm used by default utilizes the expansion</span>
0012 <span class="comment">%                    (x-y)'(x-y) == x'x + y'y - 2x'y,</span>
0013 <span class="comment">%   because the right hand side uses fewer floating point operations.</span>
0014 <span class="comment">%   However, round-off error with this technique may produce small but</span>
0015 <span class="comment">%   non-zero (even negative) values when x == 