41 #include"star_rot_dirac_diff.h" virtual const Sym_tensor & con() const
Read-only access to the contravariant representation.
virtual void hydro_euler()
Computes the hydrodynamical quantities relative to the Eulerian observer from those in the fluid fram...
Cmp sqrt(const Cmp &)
Square root.
virtual void set_etat_zero()
Sets the logical state to ETATZERO (zero).
Sym_tensor stress_euler
Spatial part of the stress-energy tensor with respect to the Eulerian observer.
Scalar omega_field
Field .
virtual void std_spectral_base()
Sets the spectral bases of the Valeur va to the standard ones for a scalar field. ...
virtual void del_deriv() const
Deletes all the derived quantities.
Scalar s_euler
Trace of the stress scalar in the Eulerian frame.
virtual void std_spectral_base()
Sets the standard spectal bases of decomposition for each component.
Scalar gam_euler
Lorentz factor between the fluid and Eulerian observers.
Scalar ener
Total energy density in the fluid frame.
Scalar press
Fluid pressure.
Vector u_euler
Fluid 3-velocity with respect to the Eulerian observer.
void mult_rsint()
Multiplication by everywhere; dzpuis is not changed.
Tenseur contract(const Tenseur &, int id1, int id2)
Self contraction of two indices of a Tenseur .
virtual const Sym_tensor & cov() const
Read-only access to the covariant representation.
Scalar nn
Lapse function N .
Scalar & set(int)
Read/write access to a component.
Vector j_euler
Momentum density 3-vector with respect to the Eulerian observer.
Scalar ener_euler
Total energy density in the Eulerian frame.
virtual void std_spectral_base()
Sets the standard spectal bases of decomposition for each component.