1. What did you do this week?
This week's main job is to implement the backward propagation. After that, I complete the whole vjp.
Because of the bad support for figure and code, more detail see: https://sangyx.com/1790
2. Difficulty
I complicated this problem at the beginning. Later I found that imitating pytorch's API to implement is more intuitive and simple.
In addition, because I am not very familiar with uarray, some implementations are not elegent.
3. What is coming up next?
The work for the next week is to test vjp and work with my mentor to rewrite the code more elegent.