英语词汇“Ludolph”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

Ludolph

释义

Ludolph|ˈluːdɒlf|
[The name of Ludolph van Ceulen (1540–1610), who was born at Hildesheim (Germany), taught mathematics in the Netherlands, and calculated π to 35 decimal places.]
Ludolph's number: the number π (see pi n.).
[1887Encycl. Brit. XXII. 434/2 In Germany the ‘Ludolphische Zahl’ is still a common name for the ratio.]1894F. Cajori Hist. Math. 154 The value of π is therefore often named ‘Ludolph's number’.1959Webster's Biogr. Dict. s.v. Ceulen, Ludolph van... Known for computations of the value of π (Ludolphian, or Ludolph's number).
Hence Luˈdolphian a.
1886G. S. Carr Synopsis Pure & Appl. Math. I. ii. 901/1 (Index), Ludolphian number.1905Westm. Gaz. 14 Oct. 3/1 The history of the search for this ratio, the Ludolphian number..is practically the early history of mathematics itself.1953H. Eves Introd. Hist. Math. iv. 92 Ludolph van Ceulen of Germany computed π to 35 decimal places by the classical method, using polygons having 2⁶² sides. He spent a large part of his life on this task and his achievement was considered so extraordinary that the number was engraved on his tombstone, and to this day is frequently referred to in Germany as ‘the Ludolphian number’.

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