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:

    “We bring [to government] no hereditary status or gift of infallibility and none follows us from this place.”
    —Gerald R. Ford (b. 1913)

    “They will mark the stone-battlements
    And the circle of them
    With a bright stain.
    They will cast out the dead
    A sight for Priam’s queen to lament
    And her frightened daughters.”
    —Hilda Doolittle (1886–1961)