celeries.mmr.MMR.solve_fp

MMR.solve_fp(v0, delta, **kwargs)

Local root-finding of the derivatives (dv/dt) to find a fixed point of the averaged problem.

The root-finding is performed using newton() and try to find a root of eval_dv() while making use of the Jacobian matrix (eval_grad_dv()).

Parameters:

v0(4*npla-4,) ndarray

Initial values of the Hamiltonian variables (y, phi, x, dL).

deltafloat

Value of delta.

**kwargs

Optional arguments to pass to newton().

Returns:

solNewtonResult

The solution represented as a NewtonResult object.