I am edit answer with @DanielF explanation: "floor doesn't convert to integer, it just gives integer-valued floats, so you still need an ... ... <看更多>

In Python 3, floor and ceil changed to return integers, rather than floats: >>> math.floor(1.5), math.ceil(1.5) (1, 2) >>> np.floor(1.5), ... ... <看更多>

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