01 Apr Diophantus – A life full of mathematics
Diophantus of Alexandria (born c. AD 200 – c. 214; died c. AD 284 – c. 298) was a Greek mathematician, who was the author of a series of books called Arithmetica, many of which are now lost. His texts deal with solving algebraic equations.
Diophantine equations, Diophantine geometry, and Diophantine approximations are subareas of Number theory that are named after him.
Diophantus coined the term παρισότης (parisotes) to refer to an approximate equality.[2] This term was rendered as adaequalitas in Latin, and became the technique of adequality developed by Pierre de Fermat to find maxima for functions and tangent lines to curves.
Diophantus was the first Greek mathematician who recognized positive rational numbers as numbers, by allowing fractions for coefficients and solutions. In modern use, Diophantine equations are algebraic equations with integer coefficients, for which integer solutions are sought.
Little is known about the life of Diophantus. He lived in Alexandria, Egypt, during the Roman era, probably from between AD 200 and 214 to 284 or 298. Diophantus has variously been described by historians as either Greek,[3][4][5] or possibly Hellenized Egyptian,[6] or Hellenized Babylonian,[7] The last two of these identifications may stem from confusion with the 4th-century rhetorician Diophantus the Arab.[8] Much of our knowledge of the life of Diophantus is derived from a 5th-century Greek anthology of number games and puzzles created by Metrodorus. One of the problems (sometimes called his epitaph) states:
‘Here lies Diophantus,’ the wonder behold.
Through art algebraic, the stone tells how old:
‘God gave him his boyhood one-sixth of his life,
One twelfth more as youth while whiskers grew rife;
And then yet one-seventh ere marriage begun;
In five years there came a bouncing new son.
Alas, the dear child of master and sage
After attaining half the measure of his father’s life chill fate took him. After consoling his fate by the science of numbers for four years, he ended his life.’
In popular culture, this puzzle was the Puzzle No.142 in Professor Layton and Pandora’s Box as one of the hardest solving puzzles in the game, which needed to be unlocked by solving other puzzles first.
Source: WIKIPEDIA
