Fra Luca Bartolomeo de Pacioli or Luca Pacioli is known as “The Father of Accounting and Bookkeeping”. He was an Italian mathematician, associate with the famous Leonardo da Vinci, Franciscan friar and most especially the influential contributor for the field as what we know now called accounting. As you must know he was the first to used double entry system of book-keeping work and published it.
Pacioli received his education in abbaco in Sansepolcro an education in vernacular instead of Latin and he focused in regards about merchants. In 1464 he moved to Venice and continued his education while tutoring the merchant’s three sons. During this time he wrote the very first book about treatise on arithmetic where he used it in tutoring the three boys. Along the year 1472 to 1475 he became Franciscan friar. He teaches in Perugia in 1475 at first a private teacher and he holds the first chair in mathematics in 1477. He also did a comprehensive textbook for his students in vernacular.
Summa de arithmetica was the first book that was printed in 1494. And in Venice is where Proportioni et proportionalita published. During his work in Milan where he had accepted the invitation of Duke Ludovico Sforza he associated with the great Leonardo da Vinci where he also lived and taught him mathematics.
Some of the published work of Pacioli: Tractatus mathematicus ad discipulos; Summa de arithmetica, geometria. Proportioni et proportionalita; De viribus quantitatis; Geometry; De divina proportione.
He was a great man and he really does love his work and you can see how he loved mathematics.