In this article we shall examine several different types of figurative numbers which have been studied extensively over the period of 2500 years, and currently scattered on hundreds of websites. We shall discuss their...In this article we shall examine several different types of figurative numbers which have been studied extensively over the period of 2500 years, and currently scattered on hundreds of websites. We shall discuss their computation through simple recurrence relations, patterns and properties, and mutual relationships which have led to curious results in the field of elementary number theory. Further, for each type of figurative numbers we shall show that the addition of first finite numbers and infinite addition of their inverses often require new/strange techniques. We sincerely hope that besides experts, students and teachers of mathematics will also be benefited with this article.展开更多
Chinese medicine（CM）has attracted wide attention from the public after the return of Hong Kong（HK）to China in July 1997.In 1999,the HK Chinese Medicine Ordinance was enacted to confirm the legal position of CM and...Chinese medicine（CM）has attracted wide attention from the public after the return of Hong Kong（HK）to China in July 1997.In 1999,the HK Chinese Medicine Ordinance was enacted to confirm the legal position of CM and since then the development of CM in HK has entered an entirely newphase.展开更多
文摘In this article we shall examine several different types of figurative numbers which have been studied extensively over the period of 2500 years, and currently scattered on hundreds of websites. We shall discuss their computation through simple recurrence relations, patterns and properties, and mutual relationships which have led to curious results in the field of elementary number theory. Further, for each type of figurative numbers we shall show that the addition of first finite numbers and infinite addition of their inverses often require new/strange techniques. We sincerely hope that besides experts, students and teachers of mathematics will also be benefited with this article.
文摘Chinese medicine（CM）has attracted wide attention from the public after the return of Hong Kong（HK）to China in July 1997.In 1999,the HK Chinese Medicine Ordinance was enacted to confirm the legal position of CM and since then the development of CM in HK has entered an entirely newphase.
