学习笔记（9):PyTorch从入门到实战一次学会-自动求导

立即学习:https://edu.youkuaiyun.com/course/play/27286/361359?utm_source=blogtoedu

#自动求导

x = torch.ones((2,2),requires.grad=True)

y = x +2

z = y * y * 3

out = z.mean()

out.backward()