**How To Find Critical Points Of A Multivariable Function 2022**. %surface given the function f (x,y). %the method choosen is to compute the first and second partial derivatives.

X − 3 ( − 3 x 2) 2 = 0. We first find the first order partial derivatives. You simply set the derivative to 0 to find critical points, and use the second derivative test to judge whether those points are maxima or minima.