Re: [Maxima-discuss] probable bug in sqrt

[David S. <d.s...@go...>]

Michel Talon <ta...@lp...>:

> I think there is definitely a bug here: tracing the function cquotient
> shows there are a lot of calls to cquotient which work OK and then a last
> one which bombs out. This can be reproduced in a fresh maxima session:
>
> (%i1) :lisp(MAXIMA::CQUOTIENT 188021706981212160 -32188114592695296)
> Maxima encountered a Lisp error:
>  attempt to THROW to a tag that does not exist: RAT-ERR
>
I have difficulty in understanding how this is not a bug in maxima or how
> this bug is related to algebraic dependencies. Maybe the numbers are too
> big for some reason.
>
This is by design.
The comment above cquotient says:

;; If MODULUS is nil, then we work over the ring of integers when A and B
are
;; integers, and raise a RAT-ERROR if A is not divisible by B.

Best regards
David