Luz Ardiden is a ski resort in the Pyrenees. It is situated in the Hautes-Pyrénées department, in the Occitanie Region. The ski resort lies at a height of 1,720 m (5,640 ft) and was opened on 16 January 1975. In recent years the road to Luz Ardiden has served as an occasional stage finish for the Tour de France and the Vuelta a España.
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Luz Ardiden in the context of Sinuous
Sinuosity, sinuosity index, or sinuosity coefficient of a continuously differentiable curve having at least one inflection point is the ratio of the curvilinear length (along the curve) and the Euclidean distance (straight line) between the end points of the curve. This dimensionless quantity can also be rephrased as the "actual path length" divided by the "shortest path length" of a curve.The value ranges from 1 (case of straight line) to infinity (case of a closed loop, where the shortest path length is zero for an infinitely-long actual path).
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