On 05/04/2010 11:41 AM, William A. Stein wrote:
On May 4, 2010, at 9:06 AM, Jason Grout<[email protected]> wrote:
On 05/04/2010 10:30 AM, William A. Stein wrote:
I think I wrote the original code for this, and I am ok with the change
you suggest, since our policy on explicit coercions is to make them work
when they make (some) mathematical sense.
A related question is that conversion from CC or CDF to long, int, ZZ, or QQ
also fails, though doing something like ZZ(RR(CC(1))) works.
Should conversion to an integer or rational try to work if the imaginary part
is zero?
Yes. And note that the implementation of QQ(RR(... is pretty nontrivial.
Can I punt to that, so the tricky code is all in one place? I'm not
sure how to make the coercion system convert CC to RR before converting
to QQ.
Thanks,
Jason
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