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e^z-xyz=0,求эz/эx和эz/эy
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e^z-xyz=0,求эz/эx和эz/эy
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答案和解析
e^z=xyz
对x求导:
(e^z)dz/dx=yz+(xy)dz/dx
dz/dx=yz/(e^z-xy)=yz/(xyz-xy)=z/(xz-x)
x与y对称:
dz/dy=z/(yz-y)
对x求导:
(e^z)dz/dx=yz+(xy)dz/dx
dz/dx=yz/(e^z-xy)=yz/(xyz-xy)=z/(xz-x)
x与y对称:
dz/dy=z/(yz-y)
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