@property
def heat_capacity_P_polyfit(self):
    'Return heat capacities at constant pressure at temperatures.\n\n        Volumes are computed in another way to heat_capacity_P_numerical\n        for the better numerical behaviour. But this does not work\n        when temperature dependent electronic_energies is supplied.\n\n        '
    if (self._electronic_energies.ndim == 1):
        return self._cp_polyfit[:self._len]
    else:
        return None
Return heat capacities at constant pressure at temperatures.

Volumes are computed in another way to heat_capacity_P_numerical
for the better numerical behaviour. But this does not work
when temperature dependent electronic_energies is supplied.
@property
def heat_capacity_P_polyfit(self):
    'Return heat capacities at constant pressure at temperatures.\n\n        Volumes are computed in another way to heat_capacity_P_numerical\n        for the better numerical behaviour. But this does not work\n        when temperature dependent electronic_energies is supplied.\n\n        '
    if (self._electronic_energies.ndim == 1):
        return self._cp_polyfit[:self._len]
    else:
        return None