# Mathematician:Hypsicles of Alexandria

## Mathematician

Alexandrian mathematician and astronomer best known for having Book $\text{XIV}$ of Euclid's The Elements attributed to him.

Whether or not he was also responsible for Book $\text{XV}$ of The Elements is still up for debate.

Also appears to have written a (now lost) work on polygonal numbers.

Alexandrian

## History

• Born: c. 190 BCE, Alexandria, Egypt
• Died: c. 120 BCE