;; as a priority queue, choosing the "simplest" incomplete integral at
;; each step, or choosing randomly among equally simple integrals.
;; Simplicity equals small size, and few steps removed from the original
;; as a priority queue, choosing the "simplest" incomplete integral at
;; each step, or choosing randomly among equally simple integrals.
;; Simplicity equals small size, and few steps removed from the original