Secondly to analyze the reasons which come from individuals and society, from spirit and material, from history and actuality;

分析了原因，既有自身的又有社会的，既有精神的又有物质的，既有历史的又有现实的；

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Through the research on the history and actuality of the quaternion and the quaternion matrix theory , we have found that , from 1843, when English mathematician W.

通过对四元数和四元数矩阵理论的历史与现状的考查，我们发现，从1843年英国数学家W 。

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Through the research on the history and actuality of the quaternion and the quaternion matrix theory , we have found that , from 1843, when English mathematician W.

通过对四元数和四元数矩阵理论的历史与现状的考查，我们发现，从1843年英国数学家W 。

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