def smallStepsPerLargeStep(self, smallStepsPerLargeStep):
        """ Sets the number of small steps that go in a large one.

        """
        self._smallStepsPerLargeStep = smallStepsPerLargeStep
        self._smallStepFactor = np.power(self.largeStepFactor, 1.0 / smallStepsPerLargeStep)