Mathematician:Theon of Alexandria

Mathematician
Alexandrian mathematician and astronomer.

Best known for being the father of.

His edition of was an authority until well into the $19$th century. Not to be confused with, known as Theon Senior or the old Theon.

Nationality
Alexandrian (a city in what is now Egypt).

History

 * Born: c. 335 CE, possibly in Alexandria, Egypt
 * Died: c. 405 CE

Publications

 * c 364: Produced an edition of.
 * Produced commentaries on 's Data and Optics.
 * Produced a important commentary on 's, and two on his Handy Tables.
 * A detailed treatise on the astrolabe.
 * Catoptrica, which was at one point thought to have been written by.

Also known as
In Greek: Θέων