quaternion
/kwəˈtəːni.ən/
noun
- 1
A group or set of four people or things.
- 2
A word of four syllables.
- 3
A four-dimensional hypercomplex number that consists of a real dimension and 3 imaginary ones (i, j, k) that are each an independent square root of -1. They are commonly used in vector mathematics and in calculating the rotation of three-dimensional objects.
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