Francesco Pellos

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Compendio de lo abaco , 1492

Francesco Pellos (or Pellizzati, around 1492) was a mathematician . He came from Nice and in 1492 wrote the work Sen segue de la art de arithmeticha es semblātment de ieumetria dich ho nominatz Cōpendiō de lo abaco (published in Turin), in which the point was used as a decimal separator for the first time according to today's knowledge . Otherwise nothing seems to be known about him.



  • Francesco Pellos: Compendio de lo abaco ( it ). Nicolas Benedict, Jacobinus Suigus, 1492.
  • Florian Cajori: A History Of Mathematical Notation, Vol I . The Open Court Company, London, 1928. p. 315; on-line
  • David Eugene Smith: Rara arithmetica . Ginn and Company Publishers, Boston and London, 1908. Pages 50-52 (with copy of the title page of Pellos' book); on-line