Birdwatch Note Rating
2023-05-19 02:30:45 UTC - HELPFUL
Rated by Participant: 922B617BFAA151E5F21D15D8D56AAD9605CEA14A22EBD1BAC504FFA07B7331DF
Participant Details
Original Note:
This has been called as “Japanese calculation”, but it is called as “Ancient Indian method” in Japan actually. And called as “Chinese stick method” in internet, too. The is a movement to clarify its roots, however the correct answer has not been reached as attached links. https://math.stackexchange.com/questions/877120/what-is-the-origin-of-how-the-japanese-multiply-line-multiplication https://hsm.stackexchange.com/questions/9902/what-is-the-origin-of-the-chinese-stick-multiplication-method
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