Follow-up on #32677: Observed in the context of #32432 (sagemath-polyhedra):

   AttributeError: 'sage.rings.real_double.RealDoubleElement' object has no attribute 'sin'
   AttributeError: 'sage.rings.real_double.RealDoubleElement' object has no attribute '_pow_'

In this ticket, we provide simple implementations for these methods (whose implementation using GSL was moved to a subclass in #32677)

Depends on #32963

CC: @sagetrac-tmonteil

Component: refactoring

Author: Matthias Koeppe

Issue created by migration from https://trac.sagemath.org/ticket/32779