Ease Back

ease_back(factor: float = 1.70158) → EasingType

Returns a back ease

\[\text{ease_back}(t) = (\text{factor} + 1)\times t^3 - \text{factor}\times t^2\]

Parameters: factor (float, default: 1.70158) – The scale of the easing’s stretch.
Returns: EasingType – a back ease callable