| 单词 | sacrobosco, johannes de |
| 释义 | Sacrobosco, Johannes deSacrobosco, Johannes de(yōhän`əs də săkrōbŏs`kō), orJohn of Hollywood,c.1200–1256, English mathematician and astronomer. He wrote several widely read and influential books: Algorismus, a study of arithmetic; a treatise on the calendar; and the most popular medieval introductory textbook on astronomy, the Tractatus de sphaera. |
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