Isn't this definition ambiguous?

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The definition of a positively oriented curve is established as one where the region enclosed by the curve is to the left of the traveler. However, this definition becomes ambiguous in three-dimensional space, as traveling along the same direction on the opposite side of the curve results in the region being to the left again. The discussion highlights the need for a clearer specification of orientation, emphasizing that terms like "clockwise" and "anticlockwise" are dependent on the observer's perspective. Therefore, the positive orientation definition is effectively limited to two-dimensional contexts.

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LucasGB
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It is defined that a curve is positively oriented if when one travels along it, the region enclosed by the curve is to his left. But if this curve exists in 3D, and one goes to the other side of the curve, and travels along the same direction, then the curve will be to his left! So isn't this definition ambiguous? (I attached a simple sketch of this to make my point clearer.)

How can you specify which way to go around a curve unambiguously? "Clockwise" and "anticlockwise" depends from where you're looking at the curve, and so does this "region to your right/region to your left" business.
 

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Positive orientation definition only applies to 2-D.
 

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