pastas.rfunc.Hantush.get_tmax# pastas.rfunc.Hantush.get_tmax(p: pastas.typing.ArrayLike, cutoff: float | None = None) → float# Calculate tmax using either the approximation or root finding. Parameters: p (array_like) – Response function parameters. cutoff (float, optional) – Fraction of the step response used to determine the response cutoff. Defaults to self.cutoff if cutoff is None. Returns: Response time in days corresponding to the selected cutoff. Return type: float