pastas.rfunc.Polder.get_tmax
============================

.. py:method:: pastas.rfunc.Polder.get_tmax(p: pastas.typing.ArrayLike, cutoff: float | None = None) -> float

   
   Get response time for a certain cutoff for Polder response function.

   :param p: Response function parameters [A, a, b].
   :type p: array_like
   :param cutoff: Fraction of the step response used to determine the response cutoff.
                  Defaults to `self.cutoff` if `cutoff is None`.
   :type cutoff: float, optional

   :returns: **tmax** -- Time when the step response has reached the cutoff fraction of its upper limit.
   :rtype: float















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