Back أيدا ياسوأكي Arabic Yasuaki Aida Catalan Aida Yasuaki German Aida Yasuaki Spanish Aida Yasuaki French 会田安明 Japanese 아이다 야스아키 Korean Aida Yasuaki PMS Aida Yasuaki Portuguese Айда Ясуаки Russian
Aida Yasuaki | |
|---|---|
 | |
| Born | 10 February 1747 |
| Died | 26 October 1817 (aged 70) |
| Nationality | Japanese |
| Scientific career | |
| Fields | Mathematics |
Aida Yasuaki (会田 安明, February 10, 1747 – October 26, 1817) also known as Aida Ammei, was a Japanese mathematician in the Edo period.[1]
He made significant contributions to the fields of number theory and geometry, and furthered methods for simplifying continued fractions.
Aida created an original symbol for "equal". This was the first appearance of the notation for equal in East Asia.[2]
- ^ Smith, David. (1914). A History of Japanese Mathematics, p. 188. , p. 188, at Google Books
- ^ Jochi, Shigeru. (1997). "Aida, Yasuaki," Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, p. 38. , p. 38, at Google Books