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Ford circle

Ford circle

Rational circle tangent to the real line.

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Readers' pathsAug 2026 – Oct 2026

Readers go next to

Share of the 297 clicks on its links

  1. Apollonian gasket

    Fractal composed of tangent circles.

    36%

  2. Pappus chain

    Ring of circles between two tangent circles.

    19%

  3. Steiner chain

    Set of circles related by tangency.

    14%

  4. Farey sequence

    Increasing sequence of reduced fractions.

    11%

  5. Sangaku

    Wooden tablets inscribed with geometrical theorems in Edo Japan.

    4.7%

  6. Descartes's theorem

    Equation for radii of tangent circles.

    3.7%

Readers come from

Share of the 646 readers arriving from another article

  1. Apollonian gasket

    Fractal composed of tangent circles.

    29%

  2. Farey sequence

    Increasing sequence of reduced fractions.

    13%

  3. Circle

    Simple curve of Euclidean geometry.

    8.2%

  4. Partition function (number theory)

    Number of partitions of an integer.

    8.2%

  5. Sangaku

    Wooden tablets inscribed with geometrical theorems in Edo Japan.

    7.6%

  6. Sphere packing

    Arrangement of spheres within a space.

    5.7%

  7. Steiner chain

    Set of circles related by tangency.

    4.2%

  8. Rational number

    Quotient of two integers.

    1.5%