Japanese New Year happiness all around. The amount of money given depends on the age of the child but is usually the same if there is more than one child so that no one feels slighted. It is not uncommon for amounts greater than ¥5,000 (approximately US$50) to be given. The New Year traditions are also a part of Japanese poetry, including haiku (poems with 17 syllables, in three lines of five, seven and five) and renga (linked poetry). All of the traditions above would be appropriate to include in haiku as "kigo" (season words). There are also haiku that celebrate many of
Invariant of a binary form for the ring of covariants. showed that the ring of invariants of a degree 8 form is generated by 9 invariants of degrees 2, 3, 4, 5, 6, 7, 8, 9, 10, and the ring of covariants is generated by 69 covariants. August von Gall () and confirmed the generators for the ring of invariants and showed that the ideal of relations between them is generated by elements of degrees 16, 17, 18, 19, 20. showed that the algebra of invariants of a degree 9 form is generated by 92 invariants. Cröni, Hagedorn, and Brouwer computed 476 covariants, and Lercier