Odin makes them (and more!) absolutely lovely to work with:
complex32/64/128, quaternion64/128/256
https://odin-lang.org/docs/overview/#array-programming
https://odin-lang.org/docs/overview/#matrix-type
Probably helps it's the language JangaFX uses for their products used by essentially every major video game, movie, and TV show out there (https://jangafx.com/#headline-603-384)