On Sun, 23 Sep 2007 01:40:42 -0400
"Stavros Macrakis" <macrakis at alum.mit.edu> wrote:
> Your code is indeed considerably simpler, but incorrect in many simple
> cases. All the following are polynomials in x but your code reports
> that they are not:
>
> %pi
> a
> x+a
> a*x
> rat(x,q)
>
> Barton Willis's code is correct, I believe.
Oh. Am feeling a bit stupid! Which code is Barton Willis's? Unless I've
inadvertently deleted an email, I don't think he posted any.
In which case, do you mean polyp which is in limit.lisp? That works on
all but your last example. And I really should have found it before
trying to write my own!
Rupert
P.S. Am feeling even more stupid because the reply-all button on my
email client seems to have been eluding me. :(
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