*** derivs.h~	2006-01-16 11:23:56.000000000 +0000
--- derivs.h	2006-01-19 12:34:39.000000000 +0000
***************
*** 203,209 ****
    template<class T> Curv_orth<T> Curv_frac<T>::curv_orth( const Cell& cell ) const
    {
      Mat33<T> m( cell.matrix_frac() );
!     return Curv_frac<T>( m.transpose() * (*this) * m );
    }
  
    /*! \param g The grid concerned \return The transformed derivative. */
--- 202,208 ----
    template<class T> Curv_orth<T> Curv_frac<T>::curv_orth( const Cell& cell ) const
    {
      Mat33<T> m( cell.matrix_frac() );
!     return Curv_orth<T>( m.transpose() * (*this) * m );
    }
  
    /*! \param g The grid concerned \return The transformed derivative. */