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  2. Squaring the circle - Wikipedia

    en.wikipedia.org/wiki/Squaring_the_circle

    Squaring the circle is a problem in geometry first proposed in Greek mathematics. ... Dante uses the circle as a symbol for God, and may have mentioned this ...

  3. Alchemical symbol - Wikipedia

    en.wikipedia.org/wiki/Alchemical_symbol

    Alchemical symbols were used to denote chemical elements and compounds, as well as alchemical apparatus and processes, until the 18th century. Although notation was ...

  4. Quadrature (geometry) - Wikipedia

    en.wikipedia.org/wiki/Quadrature_(geometry)

    In mathematics, particularly in geometry, quadrature (also called squaring) is a historical process of drawing a square with the same area as a given plane figure or computing the numerical value of that area. A classical example is the quadrature of the circle (or squaring the circle).

  5. Straightedge and compass construction - Wikipedia

    en.wikipedia.org/wiki/Straightedge_and_compass...

    The most famous of these problems, squaring the circle, otherwise known as the quadrature of the circle, involves constructing a square with the same area as a given circle using only straightedge and compass. Squaring the circle has been proved impossible, as it involves generating a transcendental number, that is, √ π.

  6. Squared circle - Wikipedia

    en.wikipedia.org/wiki/Squared_circle

    Squared circle may refer to: Boxing ring; Wrestling ring; Squared-circle postmark; Squared circle, an alchemical symbol; ... Squaring the circle, a ...

  7. ‘Squaring the Circle’ Review: The Story Behind Rock’s ...

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  8. ‘Squaring the Circle: The Story of Hipgnosis’ Review: How ...

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  9. Circle - Wikipedia

    en.wikipedia.org/wiki/Circle

    The compass in this 13th-century manuscript is a symbol of God's act of Creation. ... Squaring the circle is the problem, proposed by ancient geometers, ...