/**
* Removes the <tt>s</tt> smallest and <tt>l</tt> largest elements from the receiver. The
* receivers size will be reduced by <tt>s + l</tt> elements.
*
* @param s the number of smallest elements to trim away (<tt>s >= 0</tt>).
* @param l the number of largest elements to trim away (<tt>l >= 0</tt>).
*/
public synchronized void trim(int s, int l) {
DoubleArrayList elems = sortedElements();
clear();
addAllOfFromTo(elems, s, elems.size() - 1 - l);
}
