Should not validate G, G' for cases when it is nan

Hmm, I mean, it does not have to be, mathematically.  Should we warn people
if it is not, though?  I would think that it is still "unusual", in the
words of the warning.

On Sun, Dec 14, 2014 at 11:07 PM, Timo Heister <notifications@github.com>
wrote:
>
> In burnman/eos/slb.py
> <https://github.com/geodynamics/burnman/pull/91#discussion-diff-21808303>:
>
> > @@ -289,7 +291,7 @@ def validate_parameters(self, params):
> >              warnings.warn( 'Unusual value for Gprime_0', stacklevel=2 )
> >          if params['molar_mass'] < 0.001 or params['molar_mass'] > 10.:
> >              warnings.warn( 'Unusual value for molar_mass', stacklevel=2 )
> > -        if params['n'] < 1. or params['n'] > 1000.:
> > +        if params['n'] < 1. or params['n'] > 1000. or float(params['n']).is_integer() == False:
>
> this is where he removed the integer check...
>
> @bobmyhill <https://github.com/bobmyhill> ?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/geodynamics/burnman/pull/91/files#r21808303>.
>