弧矢算术
顾应祥
6 chapters·15,677 characters·Classical Chinese · Public Domain
关于弧矢计算的第一部数学专著.一卷，明顾应祥撰，成书于1552年.正卷前有“弧矢论说”和“方圆论说”两篇短文，前者给出有关弧矢的各项定义及相互求法，还说明了弧矢和圆径的相互关系，并由此给出计算弧矢的理论依据;后者是对“方五斜七”和圆周率的讨论.全书给出十四术，主要讨论弧、矢、弦、截弦和截积间的关系和互求问题，都要借助勾股定理，有些要归结为解方程求出结果，其中有10个四次方程的解法是增乘开方法.该书有明嘉靖癸丑(1553)刊本和《四库全书》本.
Chapters (6)
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