M MakezHD Dec 2015 22 0 Spain Feb 28, 2016 #1 Is there a way to check if a saddle point I calculated in a three variable function is OK? The function is f(x,y,z)=(x+z^2)e^(x(y^2+z^2-1)) and I got a saddle point in x=1, y=0, z=0. f(1,0,0)=1/e

Is there a way to check if a saddle point I calculated in a three variable function is OK? The function is f(x,y,z)=(x+z^2)e^(x(y^2+z^2-1)) and I got a saddle point in x=1, y=0, z=0. f(1,0,0)=1/e

C chiro MHF Helper Sep 2012 6,608 1,263 Australia Feb 28, 2016 #2 Hey MakezHD. You should find the Jacobian and Hessian and use that to verify.