Tutorial on Automatic Differentiation

This is a video tutorial on Automatic Differentiation. Tutorial is from "How to Differentiate with a Computer", www.ams.org/publicoutreach/fea..., with permission from the author, David Austin, Grand Valley State University, and the permission of the American Mathematical Society
Attribution-NonCommercial-ShareAlike CC BY-NC-SA
Authors: Matthew Yedlin, Mohammad Jafari
Department of Computer and Electrical Engineering, University of British Columbia.

[@striderQED]

Dude, this is awesome. Thanks

[@David-kw5uj]

Fine, but which is the final result?
My computations bring to: -2sin(2)-6cos(2) but I am not sure I got the method properly.

[@MariaFernandez-pv9hn]

shouldnt t_bar * y be equal to sin(-2)?

[@splash2981]

No, t_bar = sin(-2), y = -1,

[@user-oy7ut2dc2o]

are we taking the points randomly to work on?

[@mattyedlin7292]

We sweep backwards from the loss function- using the chain rule - sweeping backwards through the computational graph