3rd-century mathematicians

Diophantus of Alexandria () (; ) was a Greek mathematician who was the author of the Arithmetica in thirteen books, ten of which are still extant, made up of arithmetical problems that are solved through algebraic equations.

Iamblichus ( ; ; ; ) was a Syrian Arab Neoplatonist philosopher who determined a direction later taken by Neoplatonism. Iamblichus was also the biographer of the Greek mystic, philosopher, and mathematician Pythagoras. In addition to his philosophical contributions, his is important for the study of the sophists because it preserved about ten pages of an otherwise unknown sophist known as the Anonymus Iamblichi.

Greek mathematician and astronomer

ancient Greek mathematician (4th century AD)