Estienne de La Roche (1470-1530) was a French mathematician. Events May 15 - Charles VIII of Sweden who had served three terms as King of Sweden dies. ... June 25 - Augsburg confession presented to Charles V of Holy Roman Empire. ... Leonhard Euler is considered by many to be one of the greatest mathematicians of all time A mathematician is the person whose primary area of study and research is the field of mathematics. ...

Sometimes known as Estienne de Villefranche, La Roche was born in Lyon, but his family also owned property in Villefranche-sur-Saône, where he lived during his youth. He studied mathematics with Nicolas Chuquet. Having in his possession Chuquet's manuscripts, it is probable that La Roche was on good terms with Chuquet. He taught commercial mathematics in Lyon for 25 years. He is regarded today as a professor of arithmetic (at the time, Master of Figures). He published L'arismetique in 1520, regarded at the time as an excellent handbook of algebra using an elegant notation for powers, square roots and roots of a higher nature. However, in 1880, Aristide Marre published the book Triparty by Chuquet, and it proved that the first part of L'arismetique was essentially a copy of the algebra of Chuquet. La Roche did try to teach significant mathematics, inaccessible at the time to a French audience, and thus was not merely a plagiarist. He was the worthy successor of several masters and experts in his art, such as Luca Pacioli. La Roche may have borrowed from or been influenced by several mathematicians, including Chuquet, Pacioli and Philippe Frescobaldi, a French banker who wrote some books of mathematics. Lyons), see Lyons (disambiguation). ... Euclid, Greek mathematician, 3rd century BC, known today as the father of geometry; shown here in a detail of The School of Athens by Raphael. ... Nicolas Chuquet (born 1445 (some sources say c. ... Arithmetic or arithmetics (from the Greek word αριθμός = number) is the oldest and most elementary branch of mathematics, used by almost everyone, for tasks ranging from simple daily counting to advanced science and business calculations. ... mary elline m. ... Algebra is a branch of mathematics concerning the study of structure, relation and quantity. ... The term notation can be used in several contexts. ... In mathematics, exponentiation (frequently known colloquially as raising a number to a power) is a process generalized from repeated (or iterated) multiplication, in much the same way that multiplication is a process generalized from repeated addition. ... In mathematics, the principal square root of a non-negative real number is denoted and represents the non-negative real number whose square (the result of multiplying the number by itself) is . ... In mathematics, a root (or a zero) of a function f is an element x in the domain of f such that f(x) = 0. ... Year 1880 (MDCCCLXXX) was a leap year starting on Thursday (link will display the full calendar). ... Plagiarism is the practice of claiming, or implying, original authorship, or incorporating material from someone elses written or creative work in whole or in part, into ones own, without adequate acknowledgment. ... Painting of Luca Pacioli, attributed to Jacopo de Barbari, 1495 (controversial attribution: see the hereinafter external links). ... For other uses, see Bank (disambiguation). ...

External links

• O'Connor, John J., and Edmund F. Robertson. "Estienne de La Roche". MacTutor History of Mathematics archive.