= Historical treatment of quaternions
{wiki=Category:Historical_treatment_of_quaternions}
Quaternions are a number system that extends complex numbers and was first introduced by the Irish mathematician William Rowan Hamilton in 1843. The historical treatment of quaternions encompasses their discovery, development, and applications, as well as the controversies and advancements in mathematical theory associated with them. \#\#\# Discovery and Development 1. **Early Concepts**: Before quaternions were formally defined, mathematicians used various forms of complex numbers.
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