Mathematician:Geminus of Rhodes

Mathematician

Greek astronomer and mathematician about whom practically nothing is known.

Named the cissoid of Diocles after Diocles of Carystus.

Gave a proof (incorrect) of Euclid's fifth postulate, the first on record.

A student (or later follower) of Posidonius.

Nationality

Greek

History

• Born: about 10 BCE in (possibly) Rhodes, Greece
• Died: about 60 CE

Possibly lived as much as 80 years before these dates.

Publications

• Εἰσαγωγὴ εἰς τὰ Φαινόμενα ("Introduction to the Phenomena") (often referred to as the "Isagoge")

Lost (of which only fragments survive)

• A commentary on Posidonius' work On Meteorology
• Doctrine, (or Theory) of Mathematics

Also known as

In Greek: Γεμῖνος ὁ Ῥόδιος

Sources

• John J. O'Connor and Edmund F. Robertson: "Geminus of Rhodes": MacTutor History of Mathematics archive