
1个回答
展开全部
设F=eˇxyz-xy-yz-xz,
Fx=yzeˇxyz-y-z, Fy=xzeˇxyz-x-z, Fz=xyeˇxyz-y-x,
∂z/∂x=-Fx/Fz=-(yzeˇxyz-y-z)/(xyeˇxyz-y-x),
∂z/∂y=-Fy/Fz=-(xzeˇxyz-x-z)/(xyeˇxyz-y-x).
Fx=yzeˇxyz-y-z, Fy=xzeˇxyz-x-z, Fz=xyeˇxyz-y-x,
∂z/∂x=-Fx/Fz=-(yzeˇxyz-y-z)/(xyeˇxyz-y-x),
∂z/∂y=-Fy/Fz=-(xzeˇxyz-x-z)/(xyeˇxyz-y-x).
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询