Technical Japanese

I thought it would be interesting to see what some of the different types of numbers are in Japanese.

実数 – じっすう – real number
有理数 – ゆうりすう – rational number
無理数 – むりすう – irrational number

虚数 – きょすう – imaginary number
複素数 – ふくそすう – complex number
分解型複素数 – ぶんかいがたふくそすう – split-complex number
二元数 – にげんすう – dual number

二元数 can also refer, in a broad sense, to complex and split complex numbers as well.

四元数 – しげんすう – quaternian
八元数 – はちげんすう – octonian

I think the japanese words for the higher dimensional numbers are particularly interesting. Somehow the more direct representations seem like they would be easier to understand than the latin prefixes.

Relevant links:
http://ja.wikipedia.org/wiki/有理数
http://ja.wikipedia.org/wiki/無理数
http://ja.wikipedia.org/wiki/複素数
http://ja.wikipedia.org/wiki/二元数
http://ja.wikipedia.org/wiki/四元数
http://ja.wikipedia.org/wiki/八元数

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