Hello,

I was a bit surprised by the session below. Isn't it a bit confusing to
return 2 as a *unit* when the object is a polynomial over the *integers*?

Of course, "unit" in Factored might mean something else than "unit" in
integers, but
(a) it's still confusing and
(b) it's not exactly defined in the docstring of Factored, what "unit"
actually means.

Ralf

(6) -> a := 2*(7*x+5)

   (6)  14x + 10
                          Type: Polynomial(Integer)
(7) -> factor a

   (7)  2(7x + 5)
                          Type: Factored(Polynomial(Integer))
(8) -> factors factor a

   (8)  [[factor= 7x + 5,exponent= 1]]
   Type: List(Record(factor: Polynomial(Integer),exponent: Integer))
(10) -> unit a

   (10)  2
(11) -> unit? unit a

   (11)  false
                           Type: Boolean

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