;; Dyadic type methods. If the classes of the two types are EQ, then
;; we call the SIMPLE-xxx method. If the classes are not EQ, and
;; either type's class has a COMPLEX-xxx method, then we call it.
;; Dyadic type methods. If the classes of the two types are EQ, then
;; we call the SIMPLE-xxx method. If the classes are not EQ, and
;; either type's class has a COMPLEX-xxx method, then we call it.