4 ms·
Much earlier than quantum mechanics, they are extremely useful in electrical engineering. And even before that (historically) - their 4D generalization, quatern
by Arech 3y ago
Much earlier than quantum mechanics, they are extremely useful in electrical engineering. And even before that (historically) - their 4D generalization, quaternions, are extremely useful to describe 3D rotations.
- 77pt77 3y agoComplex numbers are also useful to describe rotations on the plane, and conformal transformations more generally.