May 27, 2008
8:05 a.m.
2008/5/27 Charles R Harris <charlesr.harris@gmail.com>:
Is it appropriate to produce a double for mixed 'Q','b' types? Or should we raise a warning instead. There is a loss of precision going to doubles anyway, and that will also often be the case for the lower precision types when multiplying.
I don't think we should raise a warning by default. If the result is 'Q', then overflow occurs in the minority of cases.
I would also feel more comfortable if the output types were symmetric in the underlying c-type, even though l,i are the same precision on my machine. That might make things easier for folks using c-types or trying to embed numpy.
I agree. Regards Stéfan