- primary quaternion
- мат. примарный кватернион
Большой англо-русский и русско-английский словарь. 2001.
primary quaternion
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Quaternion Society (1899 - 1913) — A scientific society, the Quaternion Society was an “International Association for Promoting the Study of Quaternions and Allied Systems of Mathematics”. At its peak it consisted of about 60 mathematicians spread throughout the academic world… … Wikipedia
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