Why Nostr? What is Njump?
2023-10-21 20:15:00
in reply to

Shane Celis on Nostr: npub14yqjk…vrfl3 Why 4D? Well, if quaternions for rotation are always a length of ...

Why 4D? Well, if quaternions for rotation are always a length of 1, then how can you represent no rotation? That one value has to go somewhere. It can’t go into the axis of rotation (i, j, k) so we just keep it _real_ with our identity quaternion: 0i + 0j + 0k + 1!
Author Public Key
npub1lyl9nhvpfjgyf76xe6qm2v38sxxftz0y097cq86rn7zd4jtpndas2s3dml