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:
“Letters to absence can a voice impart,
And lend a tongue when distance gags the heart.”
—Horace Walpole (1717–1797)
“I am considered a misanthropist now and then, because I do not socialize with many people. But it’s only my mind that avoids you, my heart is still with you, and seeks the distance so that it can keep on loving you.”
—Franz Grillparzer (1791–1872)
“Are we not madder than those first inhabitants of the plain of Sennar? We know that the distance separating the earth from the sky is infinite, and yet we do not stop building our tower.”
—Denis Diderot (1713–1784)