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thanks @kp992 I see my comment is now resolved in 511f044

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Many thanks @kp992 , this looks great. So nice to see autodiff at work!

@kp992 @mmcky @HumphreyYang We should try hard to stick to 80 characters per line so that the code fits neatly on the page in html and pdf. It would be good to catch this in PRs when possible.

We should try hard to stick to 80 characters per line so that the code fits neatly on the page in html and pdf

I use jupyter_black auto-formatter while updating the notebook. We just need to add the code block in the start:

import jupyter_black
jupyter_black.load()

I see that by default it uses 88 chars but we can change that to 80:

jupyter_black.load(line_length=80)

Thanks @kp992 !

thanks @kp992, @jstac and @HumphreyYang. LGTM.