ex 2.92 - sparse-adjoin-term test -> poly-gen
ex 2.92 - make-tl-from-cseq
ex 2.92 - merge adjoin-term tests from dense impl
ex 2.92 - merge add-terms tests
ex 2.92 - test mul-term-by-tl ...
ex 2.92 - all test cases moved
ex 2.92 - remove unused
ex 2.92 - (2.90) tools for termlist conversion
ex 2.92 - move auto-conversion from 2.90
ex 2.92 - demo for type conversion
ex 2.92 - retab
ex 2.92 - div-term (not tested)
ex 2.92 - termlist div-terms & tests
ex 2.92 - slight change on bin-op-poly-maker
ex 2.92 - div-poly support
ex 2.92 - bug fix on division
ex 2.92 - make-tl-from-cseq-num -> setup
ex 2.92 - test div-poly
ex 2.92 - let's get started with an early idea
ex 2.92 - blank

having no idea, maybe I'm too tired... do it later.