Fabrizio Mordente (1532 – ca 1608) publishes a single sheet treatise in Venice showing illustrations of his "proportional eight-pointed compass" which has two arms with cursors that allow the solution of problems in measuring the circumference, area and angles of a circle.[2]
^"Jean-Antoine de Baif" in Weinberg, Bernard, ed., French Poetry of the Renaissance, Carbondale: Southern Illinois University Press, Arcturus Books edition, 1964, fifth printing, 1974 (first published in France, 1954), ISBN0-8093-0135-0, p. 132.
