On 6/12/07, Robert Bradshaw <[EMAIL PROTECTED]> wrote:
> I think the default I should belong to the number field Q[I] (or
> perhaps even the ring of integers) to start with (together with a
> fixed embedding into C). It would be coerced into C, the symbolic
> ring, etc. as needed.

With the current coercion and number field model, I very strongly
disagree -- the I should be symbolic.  Anyway,
you didn't give any argument for why you think "I" should be a number field
element instead of a symbolic element.   I would probably agree with you if you
were to give a good argument for why you think that, and if number fields were
much more sophisticated, and if the coercion model were suitably enhanced.

> This doesn't resolve your second issue though, I think William's
> simpify_complex is a good idea.

OK.  This would be very easy to add.

william

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