cessContainer</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">RandomAccessContainer</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">v</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>

        <span class="identifier">Real</span> <span class="identifier">get_spacing</span><span class="special">()</span> <span class="keyword">const</span><span class="s