Aristaeus the Elder

Aristaeus the Elder
Bornc. 370 BC
Diedc. 300 BC

Aristaeus the Elder (Ancient Greek: Ἀρισταῖος ὁ Πρεσβύτερος; 370 – 300 BC) was an ancient Greek geometer and mathematician who worked on conic sections. He was a contemporary of Euclid.