Saddle points
11:37
Warm up to the second partial derivative test
14:35
Local Extrema, Critical Points, & Saddle Points of Multivariable Functions - Calculus 3
8:04
Multivariable maxima and minima
12:24
Lagrange Multipliers | Geometric Meaning & Full Example
4:45
Local Max, Min and Saddle Points - Full Example Explained
13:36
Multi-variable Optimization & the Second Derivative Test
7:14
Directional derivative
11:23