Learning by doing

中文版官网：http://courses.d2l.ai/zh-v2/ 英文版官网： 1. 创建 import torch x=torch.arange(12,dtype=torch.float32).reshape((3,4)) torch.tensor([[2, 1, 4, 3], [1, 2, 3, 4], [4, 3, 2, 1]]) x = torch.arange(12) # 0~11 x.shape x.size() x = x.reshape((3, 4)) ...

查看pytorch版本 import torch print(torch.__version__) 查看pytorch是CUDA版还是CPU版 import torch print(torch.cuda.is_available()) a = 3 b = 4 c = (a ** 2 + b ** 2) ** 0.5 c p = lambda a,b: (a**2 + b**2) ** 0.5 p(1,2) a = InputParameterPlaceholder() b = ..