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The symbol 's' is so often used for displacement because the symbol 'd' is often chosen for distance. This is an important distinction in physic â¦ s, where differences between scalar (distance) and vector (displacement) types are used to measure and describe different things.hether s (or d) is used to indicate distance or displacement, the distinction is that a right-facing arrow is placed over the letter to indicate displacement since it is a vector quantity.
Distance is a numerical description of how far apart objects are. In physics or everyday usage, distance may refer to a physical length, or an estimation based on other criteria (e.g. two counties over). In mathematics, a distance function or metric is a generalization of the concept of physical distance.n terms of this, the definition of the Hausdorff distance can be simplified: it is the larger of two values, one being the supremum, for a point ranging over one set, of the distance between the point and the set, and the other value being likewise defined but with the roles of the two sets swapped.