Does ##g(x,y,z)## (the equation of the surface) need positive z or negative z when doing a surface integral?(adsbygoogle = window.adsbygoogle || []).push({});

The author specifies that ##g## either has ##z## or ##-z## depending on the orientation of the surface but doesn't specify which belongs to which orientation.

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# Does ##g(x,y,z)## (the equation of the surface) need positive z or

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