celeries.mmr.MMR.eval_grad_dv

MMR.eval_grad_dv(v, delta)

Evaluate the Jacobian matrix (matrix of the gradients of the derivatives dv/dt).

Parameters:

v(4*npla-4,) ndarray

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

deltafloat

Value of delta.

Returns:

Jac_num(4*npla-4, 4*npla-4) ndarray

Jacobian matrix (d (dv_i/dt) / d vj).