python中的点积 [英] dot product in python

问题描述

此Python代码实际上找到了两个向量的点积吗?

Does this Python code actually find the dot product of two vectors?

import operator

vector1 = (2,3,5)
vector2 = (3,4,6)
dotProduct = reduce( operator.add, map( operator.mul, vector1, vector2))

推荐答案

您还可以使用

You can also use the numpy implementation of dot product which has large array optimizations in native code to make computations slightly faster. Even better unless you are specifically trying to write a dot product routine or avoid dependencies, using a tried tested widely used library is much better than rolling your own.

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