dot graph.dot -T pdf -o graph.pdf
```
-###nn.DAG:updateOutput(input)###
-
-See the torch documentation.
-
-###nn.DAG:updateGradInput(input, gradOutput)###
-
-See the torch documentation.
-
-###nn.DAG:accGradParameters(input, gradOutput, scale)###
-
-See the torch documentation.
-
--
*Francois Fleuret, Jan 13th, 2017*