In mathematics, an orientation of a curve (including polygonal curves) is the choice of one of the two possible senses for travelling on the curve, as in forward and backward. For example, for Cartesian coordinates on the Euclidean plane, the x-axis is traditionally oriented toward the right, and the y-axis is upward oriented.
In mathematics, an orientation of a curve (including polygonal curves) is the choice of one of the two possible senses for travelling on the curve, as in forward and backward. For example, for Cartesian coordinates on the Euclidean plane, the x-axis is traditionally oriented toward the right, and the y-axis is upward oriented.
Source: Wikipedia "Curve orientation" · CC BY-SA 4.0
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