Pytorch-创建requires_grad=True的tensor

Pytorch-创建requires_grad=True的tensor

有以下四种方法

• x = torch.randn(2, 3, requires_grad=True)
• x = Variable(torch.Tensor([2, 3]), requires_grad=True)
• x = torch.tensor([2.0, 3], requires_grad=True)或者x = torch.tensor([2, 3], requires_grad=True, dtype=torch.float32)(Pytorch中浮点类型的tensor才能有梯度)
• x = torch.Tensor([2, 3]); x.requires_grad=True