Distance

Distance

Distance is a numerical description of how far apart objects are. In physics or everyday discussion, 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. A metric is a function that behaves according to a specific set of rules, and provides a concrete way of describing what it means for elements of some space to be "close to" or "far away from" each other. In most cases, "distance from A to B" is interchangeable with "distance between B and A".

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Famous quotes containing the word distance:

    Honor the spirits, but keep your distance from them.
    —Chinese proverb.

    Confucian Analects.

    1946: I go to graduate school at Tulane in order to get distance from a “possessive” mother. I see a lot of a red-haired girl named Maude-Ellen. My mother asks one day: “Does Maude-Ellen have warts? Every girl I’ve known named Maude-Ellen has had warts.” Right: Maude-Ellen had warts.
    Bill Bouke (20th century)

    [As we say], “When you get to be 18 you’re out of here.” No wonder teenagers start to distance themselves from us.
    Jerry Tello (20th century)