Tensorflow and deep learning day 3

Data Container

list

np.array

tf.Tensor

 scalar: 1.1

vector: [1.1],[1.1, 2.2, … ]

matrix: [[1.1, 2.2],[3.3, 4.4],[5.5, 6.6]]

tensor: 𝑟𝑎𝑛𝑘 > 2:int float string double bool

b.name It is a problem left over from the version , No need to pay attention

is-tensor

isinstance (a,tf.Tensor） Judge whether it is tensor

tf.zeros（【】） by shape