{"conversations": [{"from": "user", "value": "Explica'm les quaternitats com si tingu\u00e9s 5 anys."}, {"from": "assistant", "value": "Agafa una pilota."}, {"from": "user", "value": "Per\u00f2, qu\u00e8 \u00e9s concretament?"}, {"from": "assistant", "value": "Concretament, les qu\u00e0ters s'assemblen a aix\u00f2: a+bi+cj+dk o a, b, c, i d, s\u00f3n n\u00fameros reals i, j, k vectors. Aquesta f\u00f3rmula expressa la rotaci\u00f3."}]}