Leodamas of Thasos

{{Short description|4th-century BC Greek mathematician}}

Leodamas of Thasos ({{langx|grc|Λεωδάμας ὁ Θάσιος}}, c. 380 BC) was a Greek mathematician and a contemporary of Plato, about whom little is known.

There are two references to Leodamas in Proclus's Commentary on Euclid:{{cite web|last=Waterhouse|first=William C|authorlink=William C. Waterhouse|title=Math Forum Discussions - math history list (Re: Leodamas of Thasos)|url=http://mathforum.org/kb/message.jspa?messageID=1378718&tstart=06|accessdate=2011-02-07}}

At this time [Plato's time] also lived Leodamas of Thasos, Archytas of Tarentum, and Theaetetus of Athens, by whom the theorems [of geometry] were increased in number and brought into a more scientific arrangement. Younger than Leodamas was Neoclides and his pupil Leon, who added many discoveries.

Plato, it is said, taught this method [analysis] to Leodamas, who is also reported to have made many discoveries in geometry by means of it.

and one in Diogenes Laërtius' Lives and Opinions of Eminent Philosophers, Book 3 (Plato):

He [Plato] was the first to explain to Leodamas of Thasos the method of solving problems by analysis.