手动安装：

$ # in a terminal, run the commands
$ git clone https://github.com/torch/distro.git ~/torch --recursive
$ cd ~/torch; bash install-deps;
$ ./install.sh

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$ source ~/torch/install/bin/torch-activate

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$ th

   ______             __   |  Torch7                                         
 /_  __/__  ________/ /   |  Scientific computing for Lua. 
   / / / _ \/ __/ __/ _ \  |  Type ? for help                                
 /_/  \___/_/  \__/_//_/  |  https://github.com/torch         
                         |  http://torch.ch                  

th> torch.Tensor{5,6,7}
 5
6
 7
[torch.DoubleTensor of size 3]

退出 th>

os.exit()