The 2nd century was an important period for mathematics, particularly in the context of the Hellenistic tradition and the beginnings of the Roman Empire. Some key figures and developments in mathematics during this century include: 1. **Ptolemy (c. 100c. 170 AD)**: Though he was primarily known as an astronomer and geographer, Ptolemy made substantial contributions to mathematics, especially in trigonometry.
As of my last knowledge update in October 2021, there is no widely recognized entity or concept known as "Eleazar Chisma." It's possible that you might be referring to a specific individual, event, or term that has emerged more recently or is less widely known.

Articles by others on the same topic (0)

There are currently no matching articles.