English: I made this myself using the graphics programming language en:TikZ, en:Beamer (LaTeX) and en:LaTeX

It displays how derivative values propagate according to the chain rule in en:automatic differentiation for the function

${\displaystyle f(x_{1},x_{2})=x_{1}x_{2}+\sin(x_{1})}$

The only seed possible is ${\displaystyle {\bar {f}}=1}$ which yields the complete gradient of ${\displaystyle f(x_{1},x_{2})}$, ${\displaystyle \partial f/\partial x_{1}=x_{2}+\cos(x_{1})}$ which comes out of the ${\displaystyle x_{1}}$ node, and ${\displaystyle \partial f/\partial x_{2}=x_{1}}$ which comes out of the ${\displaystyle x_{2}}$ node.