Contact us
Choose a category below so we can get back to you as quickly as possible.
應該是Z=X^2-XY+Y^2-2X+Y吧,這個極值就是分別對x,y求偏導數.我就用dz/dx表示z對x的偏導了,d^2z/dxdy表示z對x,y分別求偏導..d^2z/dx^2表示z對x求二階偏導數.dz/dx=2x-y-2,dz/dy=2y-x+1d^2z/dx^2=2,d^2z/dy^2=2,d^2z/d...
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.