Uploaded January 2020 | Updated September 2026, 2 weeks ago

---

Derivative of dot product: youtu.be/vykDXI9OjDM

The tangent, normal, and binormal vectors of a space curve. We can use this to determine which direction a curve is turning, even in 3D space!

Full Valuable Vector Calculus playlist: Valuable Vector Calculus: youtube.com/playlist?list=PLug5ZIRrShJHgsWPng59fFFoqn183aO-1

New math videos every Monday and Friday. Subscribe to make sure you see them!