I found this regression when I was reviewing the reference book.
In chapter 1.16, or 1 page before chapter 2, there's: f(0) == 1; g(0) == 1 f(n) == e/2*f(n-1) - x*g(n-1) g(n) == -x*f(n-1) + d/3*g(n-1) f(3) Internal Error The function * with signature (%, Integer) -> % is missing from domain Polynomial(Fraction (Integer)) If we write "f(n) == f(n-1)*e/2 - x*g(n-1)", "g(n) == -x*f(n-1) + g(n-1)*d/3", then there's no problem. Git bisect (with the help of fricas0-repo) points to commit 991f8347 in 2022-Jun-26. Is this a bug or shall we update this example? - Qian -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/fricas-devel/0013bb84-0d97-4ad7-abf3-ddc85aa0daa4%40gmail.com.
