Define "polymath."

Polymath is a word of Greek origin that means a person of great learning skills in a large number of fields. The term "Renaissance man" is often used as a synonym. The Italian artist and inventor Leonardo da Vinci serves as the quintessential example.
In specialized contemporary usage, the Polymath Project is an outgrowth of mathematician Timothy Growers's request for online coordination in solving difficult mathematical problems. It is often referred to as "crowdmath."
In addition, Polymath (usually POLYMATH") is a computational system for educational or professional use. The software has many programs for numerical analysis that can be applied to problem solving on personal computers. Graphic presentation of results is designed for ready legibility, and tables can be easily exported to Excel. It has been licensed for use at universities around the world.
http://michaelnielsen.org/blog/the-polymath-project-scope-of-participation/

https://www.lexico.com/en/definition/polymath