Reprint of Cambridge University press edition of Paperback. pp. Diophantus of Alexandria, sometimes called "the father of algebra", was an. Diophantus was a Hellenistic Greek (or possibly Egyptian, Jewish or even Chaldean) mathematician who lived in Alexandria during the 3rd Century CE. Of later Greek mathematicians, especially noteworthy is Diophantus of Alexandria (flourished What little is known of Diophantus's life is circumstantial.


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Book X presumably Greek Book VI deals with right-angled triangles with rational sides and subject to various further conditions.

Diophantus - Wikipedia

Indeterminate equations restricted to integral solutions have come to be known, though inappropriately, as Diophantine equations. Learn Diophantus of alexandria in these related Britannica articles: Of these four are known: The Arithmetica is not a work of theoretical arithmetic in the sense understood by the Pythagoreans or Nicomachus.

Diophantus of alexandria deals, rather, with logistic, the computational arithmetic used in the solution of practical problems.

Although Diophantus knew elementary number theory and contributed new theorems to it, his Arithmetica is a collection of problems.

In the algebraic treatment of the basic equations, Diophantus, by a sagacious choice of suitable auxiliary unknowns and frequently brilliant artifices, succeeded in reducing the degree of the equation the unknowns reaching as high as the sixth power diophantus of alexandria the number of unknowns as many as ten and thus in arriving at a diophantus of alexandria.

Extent of the Work. At the close of the introduction, Diophantus speaks of the thirteen books into which he had divided the work; only six, however, survive.

Diophantus of Alexandria

The loss of the remaining seven books must have occurred early, since the oldest manuscript in Madridfrom the thirteenth century, does not contain them. Evidence for this belief may be found in the fact that Hypatia commented on only the first six books end of the fourth century. A similarity may be found in the Conics of Apollonius, of which Eutocius considered only the first four books.

Diophantus of alexandria whereas the latter missing diophantus of alexandria can be supplied in great part from Arabic sources, there are no such sources for the Arithmetica, although it is certain that Arabic versions did exist.

Diophantus - New World Encyclopedia

Western Europe learned about a Diophantus manuscript for the first time through a letter to Bianchini from Regiomontanus 15 Februarywho reported that he had found one in Venice; diophantus of alexandria contained, however, not the diophantus of alexandria thirteen books but only six.

The quadratic equations with one unknown are missing; Diophantus promised in the introduction to treat them, and many examples show that he was familiar with their solution.

A section dealing with them seems to be missing between the first and second books.


Here and at other places 7 a great deal has fallen into disorder through the commentators or transcription. For example, the first seven problems of the second book fit much better with the problems of the first, as do problems II, 17, and II, Diophantus could surely solve this as well as the system he treated in problems I, 27, Since in one of the manuscripts the six books are apportioned into seven and the writing diophantus of alexandria polygonal diophantus of alexandria could be counted as the eighth, it has been supposed that the missing portion was not particularly extensive.

This is as difficult to determine as how much—considering the above-mentioned problems, which are not always simple—Diophantus could have increased the difficulty of the problems.

In the introduction, Diophantus first explains for the beginner the structure of the number series and the names of the powers up to n6.

Diophantus of alexandria

They are as follows: Their names are patterned on diophantus of alexandria of the ordinals: Since Diophantus did not wish to write a textbook, he gives only general indications for computation: There is no doubt that he had in mind here the three forms of the quadratic equation in one unknown.

Diophanti's Arithmetica is famous for several reasons.

  • Diophantus biography
  • Diophantus - Hellenistic Mathematics - The Story of Mathematics
  • Diophantus of Alexandria; a study in the history of Greek algebra
  • Keep Exploring Britannica
  • Diophantus

See some other famous mathematicians here, or even a page where some of them appear when they were kids. The father of Algebra?

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