How Models Learn

Partial derivative

How fast a function of several inputs changes when only one input moves and the rest are held fixed, written ∂f/∂x.

A partial derivative asks how f changes when you nudge one input and hold the others still.
From Derivatives, step “Two inputs: partial derivatives”

See it in action

Try partial derivative hands-on in the lesson Derivatives, part of the The maths behind AI course.

Open the lesson