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import torch
# Number
t1 = torch.tensor(4.)
t1
tensor(4.)
t1.dtype
torch.float32
# Vector
t2 = torch.tensor([1., 2, 3, 4])
t2
tensor([1., 2., 3., 4.])
# Matrix
t3 = torch.tensor([[5., 6], 
                   [7, 8], 
                   [9, 10]])
t3
tensor([[ 5.,  6.],
        [ 7.,  8.],
        [ 9., 10.]])