On Wednesday, June 20, 2018 at 7:15:11 AM UTC-7, Richard_L wrote:
>
> Thank you! maxima_calculus.eval("domain:real;") solves my immediate
> problem.
> Of course, the underlying bug remains.
> BTW, I had heard years ago to avoid declaring sage variables with
> domain='positive', as this often triggered maxima failures. I wonder if I
> have stumbled on the same bug.
>
> well ... "domain: complex" is not the default, so that is probably less
tested, and the person(s) writing the code that deals with assumptions of
the type "x>0" will naturally not be inclined to think about how that would
interact with how `domain: complex` changes the behaviour of the system.
It doesn't surprise me they don't combine well.
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