Thanks! This does explain what I was seeing, I forgot that the "new" variables for the fraction field ring may really be new, so as you say, the substitution wasn't being done.
I have no problem using call() in what I was doing, but I couldn't figure out the behavior of .subs. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-devel?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
