Eudoxus of Cnidus was the son of Aischines. As to his teachers,
we know that he travelled to Tarentum, now in Italy, where he
studied with Archytas who was a follower of Pythagoras. The
problem of duplicating the cube was one which interested
Archytas and it would be reasonable to suppose that Eudoxus's
interest in that problem was stimulated by his teacher. Other
topics that it is probable that he learnt about from Archytas
include number theory and the theory of music. Eudoxus also
visited Sicily, where he studied medicine with Philiston, before
making his first visit to Athens in the company of the physician
Theomedon. Eudoxus spent two months in Athens on this visit and
he certainly attended lectures on philosophy by Plato and other
philosophers at the Academy which had only been established a
short time before. Heath  writes of Eudoxus as a student in
Athens:- ... so poor was he that he took up his abode at the
Piraeus and trudged to Athens and back on foot each day. After
leaving Athens, he spent over a