Hi,

please, how we cal write with FF++, the variational formulation of the following hyperbolic system:

\tau*\dfrac{\partial q}{\partial t}= -q - D* \dfrac{\partial V}{\partial x},

\dfrac{\partial V}{\partial t}=- \dfrac{\partial q}{\partial x} -\sigma*V

where the uknown functions are V(x,t) and q(x,t), D, \tau, \sigma and b are constant.

Thank you in advance