Tutorial for when a subset of the weight matrix should get updated

Accept symbolic `reps` in `tensor.tile`

fix gh-855.

Fix fun_files->func_files typo in error handler for COp unknown sections

c code of maxpool

small update to windows installation instruction

Stop confusing inner and outer outputs in connection_pattern()

Fix allocempty

added documentation and fixed the gradient of the Assert Op

Remove dead code and comments.

fix gh-2738