numpy dot() & tensorflow.assign()
2017-12-21 16:27
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numpy dot
dot()返回的是两个数组的点积一维数组:
In : d = np.arange(0,9) Out: array([0, 1, 2, 3, 4, 5, 6, 7, 8]) In : e = d[::-1] Out: array([8, 7, 6, 5, 4, 3, 2, 1, 0]) In : np.dot(d,e) Out: 84
矩阵:
In : a = np.arange(1,5).reshape(2,2) Out: array([[1, 2], [3, 4]]) In : b = np.arange(5,9).reshape(2,2) Out: array([[5, 6], [7, 8]]) In : np.dot(a,b) Out: array([[19, 22], [43, 50]])
tf.assign()
tf.assign(A, new_number): 这个函数的功能主要是把A的值变为new_number相关文章推荐
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