nml.get() << "[ "; nml << d.real(); nml.get() << " , "; nml << d.imag(); nml.get() << " ]";  return nml;
return s << d.elem();
NmlWriter& operator<<(NmlWriter& nml, const RComplex<T>& d){  nml.get() << "[ ";  nml << d.real();  nml.get() << " , ";  nml << d.imag();  nml.get() << " ]";  return nml;}