Curl

Curl is a special version of the derivative for vector fields. It can be nicely interpreted in terms of rotation in fluid flow.

2d curl intuition

Visual curl

2d curl formula

2d curl example

Finding curl in 2D

2d curl nuance

Describing rotation in 3d with a vector

3d curl intuition, part 1

3d curl intuition, part 2

3d curl formula, part 1

3d curl formula, part 2

3d curl computation example

Finding curl in 3D

Symbols practice: The gradient