cpf_nose_event

cpf_nose_event(cb_data, cx)

cpf_nose_event() - Event function to detect the nose point.

EF = CPF_NOSE_EVENT(CB_DATA, CX)

CPF event function to detect the nose point of the continuation curve,
based on the sign of the lambda component of the tangent vector.

Inputs:
    CB_DATA : struct of data for callback functions
    CX : struct containing info about current point (continuation soln)

Outputs:
    EF : event function value