[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [W] [X] node-set conversion of XPath types definition functions null coercing value converting resolving to number XPath type functions numeric values, manipulating |