10:16

Formula for computing Directional Derivative

14:51

Geometric Meaning of the Gradient Vector

19:42

Gentle Introduction to Gradients and Level Curves from Control Perspective

6:17

Gradient and contour maps

9:06

Gradient is perpendicular to the tangent plane

21:25

Partial Derivatives and the Cauchy Riemann Equations

9:37

Gradient Descent under 10 minutes feat Broid

19:30

Orthogonality of level curves and the gradient vector