See, for example, https://math.stackexchange.com/questions/911807/what-is-the-motivation-for-quaternions/911814 https://math.stackexchange.com/questions/911807/

See, for example, https://math.stackexchange.com/questions/911807/what-is-the-motivation-for-quaternions/911814 https://math.stackexchange.com/questions/911807/what-is-the-...