Ford Circle

In mathematics, a Ford circle is a circle with centre at (p/q, 1/(2q 2)) and radius 1/(2q 2), where p/q is an irreducible fraction, i.e. p and q are coprime integers. Each Ford circle is tangent to the horizontal axis y = 0, and any two circles are either tangent or disjoint from each other.

Read more about Ford Circle:  History, Properties, Total Area of Ford Circles

Famous quotes containing the words ford and/or circle:

    “There is no Soviet domination of Eastern Europe and there never will be under a Ford administration.... The United States does not concede that those countries are under the domination of the Soviet Union.”
    —Gerald R. Ford (b. 1913)

    “That three times five is equal to the half of thirty, expresses a relation between these numbers. Propositions of this kind are discoverable by the mere operation of thought, without dependence on what is any where existent in the universe. Though there never were a circle or triangle in nature, the truths, demonstrated by Euclid, would for ever retain their certainty and evidence.”
    —David Hume (1711–1776)