| 单词 | ludolphian |
| 释义 | > as lemmasLuˈdolphian Luˈdolphian adj. ΘΚΠ the world > relative properties > number > mathematical number or quantity > [adjective] > prime > irrational irrational1551 surd1551 radical1557 irradicala1690 ineffable1702 Ludolphian1886 1886 G. S. Carr Synopsis Elem. Results Math. II. Index 901/1 Ludolphian number. 1905 Westm. Gaz. 14 Oct. 3/1 The history of the search for this ratio, the Ludolphian number..is practically the early history of mathematics itself. 1953 H. 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’. < as lemmas |
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