Squaring, that is, the Squaring of the Circle, original: "Tetragonismus idest circuli quadratura." Tetragonismus is a Latinized Greek term for the process of creating a square with the same area as a circle. discovered by Campanus, Archimedes of Syracuse, and Boethius, Campanus of Novara (13th c.), Archimedes (3rd c. BCE), and Boethius (6th c. CE) were the most influential authorities on mathematics and geometry available to Renaissance scholars. the most keen experts in mathematics.

A large woodcut illustration within an ornamental floral border. In the center, a bearded scholar or astronomer stands holding a book and a pair of compasses. He is positioned on a landscape map showing cities and mountains. Above him is a celestial arc containing the signs of the zodiac (including Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces) and various stars, suns, and moons. To his left is a large wheel-like diagram on a pole, and to his right is an armillary sphere or celestial globe on a pole. Below the main image is a printer's mark or coat of arms featuring a crowned shield with a wolf or dog, flanked by the letters I, BA, and S, surrounded by floral sprigs.

Vocabulary used on this page: Squaring of the circle, Campanus, Archimedes, Boethius, mathematics, zodiac.