I just started using scipy/numpy. I have an 100000*3 array, each row is a coordinate, and a 1*3 center point. I want to calculate the distance for each row in the array to the center and s开发者_Stack
睡觉时，每个人都喜欢用枕头睡觉。自从我们很小的时候就开始保持这种开发者_Go百科睡眠习惯，大多数人都认为用枕头睡觉，理所当然是很自然的。所以今天我们要讲的话题是，睡觉的时候用枕头睡觉好不好？
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