Sacrobosco, Johannes de

Sacrobosco, Johannes de

(yōhän`əs də săkrōbŏs`kō), or

John 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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References in periodicals archive ?
Daly, 1975, "Sacrobosco, Johannes de (or john of Holywood)," DSB 12:60-63.