Stationary Points 18
nucinkis-lab.cc.ic.ac.uk › 18_3_stationary_ptsIdentify local maximum points, local minimum points and saddle points on the surfacez=f(x,y) Use first partial derivatives to locate the stationary points of a functionf(x,y) Use second partial derivatives to deter- mine the nature of a stationary point 1. The stationary points of a function of two variables
Partial Differentiation: Stationary Points
metric.ma.ic.ac.uk › stationary_pointsThe techniques of partial differentiation can be used to locate stationary points. For example: Calculate the x- and y-coordinates of the stationary points on the surface given by z = x3 −8y3 −2x2y+4xy2 −4x+8y At a stationary point, both partial derivatives are zero. That is, 3x2 −4x y+ 4y2 − 4= 0 and −24y2 −2x2 +8xy+8 = 0