In two dimensions we say that a rigid body has only one rotational degree of freedom, whereas in three dimensions we say that a rigid body has three rotational degrees of freedom. This might lead you to infer that in three dimensions you need to have three scalar quantities to represent a body's rotation. Indeed, this is the minimum requirement.
Game | Time | WPM | Accuracy |
---|---|---|---|
730 | 2020-04-09 13:59:15 | 71.21 | 98% |