| Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Outline of Final Research Achievements |
In 13th century,Chinese mathematicians studied high degree equations,that is to say, "Tianyuan-shu" and solving method of them. They used "counting rods”, thus it was the last era of the“ancient are”. In other hands, the 15-17th century, Southern Chinese mathematicians used abacus, studied merchants'mathematics.
Because the "Yang Hui Suanfa" was used the "counting rods", therefore it must be the ancient era. We, however,discovered some version of "Yang Hui Suanfa" at south Korean, and Korean mathematicians in the pre-modern age proofread it. They studied not only the "Yang Hui Suanfa" for the classical mathematical arts, but also studied it as the highest mathematical science. Seki Takakazu (1645?-1708) also proofread the "Yang Hui Suanfa", but his method was not the same as Korean mathematicians (Yonsei University, rear book no. (1) 510). We conclude that Eastern mathematicians studied the "Yang Hui Suanfa", as the highest mathematical science for the pre-modern era.
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