She made contributions to astronomy, philosophy, & mathematics.
None of her contributions survived.
None of Hypatia's works survived.
Maths & astronomy.
Sadly, none of her Hypatia's works survived. So, it cannot be said what math would be like without her contributions.
Hypatia, a renowned Egyptian mathematician and philosopher, did not write any books herself. However, she is known for her contributions to mathematics through her lectures and teachings, as well as for her commentary on works by other scholars.
AFAIK, no.
Although Hypatia could make hydrometers & astrolabes, she was not the one who invented them.
She could make astrolabes.
Maths & astronomy.
Hypatia lived in Alexandria
Hypatia
Hypatia remained unmarried.