The Jacobian determinate of functions F,G,H with respect to variables u,v,w is defined as: ∂(u,v,w)∂(F,G,H)=FuGuHuFvGvHvFwGwHw=∂u∂F∂u∂G∂u∂H∂v∂F∂v∂G∂v∂H∂w∂F∂w∂G∂w∂H