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TITLE:クォータニオン

- 超複素数
 i^2=j^2=k^2=ijk=-1 
 ij=k, jk=i, ki=j

- ベクトル・複素数・クォータニオン
--  http://www.pineappledesign.org/Kanaya/Quaternion.html

* 関連 [#h03e8dbb]

- [[代数学>algebra]]