Does Zygote differentiate symbolically?

[zdenek_hurak]

@Euhan

In my mind, I imagined that differentiation could be done symbolically or numerically, and that automatic differentiation obviated the need to do it oneself by doing one of them.

This is why I prefer the other interpretation of the AD abbreviation – Algorithmic Differentiation. I think it better reflects the essence than Automatic differentiation. Anyway, AD is distinct both from symbolic and numerical differentiation Simple numerical differentiation - #5 by zdenek_hurak.