whole_func_string: function inSubtree(tree, n, root) {
    return (tree.node(root).low <= tree.node(n).lim &&
            tree.node(n).lim <= tree.node(root).lim);
  }
func_code_string: function inSubtree(tree, n, root) {
    return (tree.node(root).low <= tree.node(n).lim &&
            tree.node(n).lim <= tree.node(root).lim);
  }
func_documentation_string: /*
  Return whether n is a node in the subtree with the given
  root.