Fabrizio Mordente [SEP] date of death
Fabrizio Mordente
Fabrizio Mordente (Salerno, 1532 – ca 1608) was an Italian mathematician. He is best known for his invention of the "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. In 1567 he published a single sheet treatise in Venice showing illustrations of his device.
Life and career.
Fabrizio Mordente was born in Salerno, Italy, and studied at the Università di Napoli. After completing his
Barlowe to explore the Outer Banks of Virginia (now North Carolina), with a view to establishing an English colony; they locate Roanoke Island.
Mathematics.
- Jean Errard publishes "Premier livre des instruments mathématiques" at Nancy.
- Fabrizio Mordente publishes "Il Signor del Compasso Fabritio Mordente. Con altri istromenti mathematici, suo fratello Gasparo da ritrovati" at Anvers and introduces the parallel rulers.
- Zhu Zaiyu calculates equal temperament.
Medicine.
- Jacques Guillemeau publishes his ophthalmology textbook "Traite des