meepmeep.numba2d.t12# meepmeep.numba2d.t12(k: float, c: ndarray[tuple[Any, ...], dtype[_ScalarT]]) → float[source]# Ingress duration T12 (first to second contact). Parameters: kfloatRadius ratio. cNDArrayA (2, 5) Taylor coefficient matrix. Returns: floatDuration between first and second contact.