For example, to rotate 45 degrees about the xy-axis using matrix rotations, the character must first rotate about the x-axis and then rotate about the y-axis. Quaternions allows a character to rotate about multiple axis simultaneously, instead of sequentially as matrix rotation allows. Quaternions are mainly used in computer graphics when a 3D character rotation is involved. He named his discovery Quaternions.Īlthough his discovery went unnoticed for a while, it wasn't until the flight simulation and computer graphics industry that Quaternions mathematics became alive again. After 10 years of work, he had finally found a way to simultaneously rotate about multiple axis. While crossing a bridge with his wife, Sir William Hamilton made a mathematical discovery so profound he carved it onto a stone.
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December 2022
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