Uploaded April 2020 | Updated September 2026, 1 week ago

---

Lagrange multipliers example problem: youtu.be/sSwKKFORPFM

Explanation of directional derivatives and gradient being perpendicular to contour lines: youtu.be/v98uipDYuqU

Explanation of the dot product: youtu.be/y-kafkvDkFg

Lagrange multipliers are extremely useful for constrained optimization problems. Here we go over the basics of a proof of the method!

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

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