[SciPy-dev] Problem with flapack

[Fernando Pérez]

> If a polynomial has only real and conjugate complex roots the coefficients
> are real. This is a very easy way to determine if the coefficients of a
> polynomial can be polished to real.

As I said, cases (like this) where there's an analytical argument underneath
backing up the cleanup may be fine. But as a general procedure, no (see
Pearu's post for the same feeling with an example of his). In general I just
prefer to be conservative than inadvertedly truncate potentially important
information.

Cheers,

f.