Boethius, De institutione arithmetica libri duo · De institutione musica libri quinque, ed. Gottfried Friedlein (Leipzig: Teubner, 1867) — read from page images, with the critical apparatus separated from the text
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p. 898numerus non est, sed fons et origo numerorum, sub linea X inscripta ponentes XX et ternarium XXX et quaterna- rium XL ceterosque in ordine sese sequentes proprias secundum denominationes assignare constituerunt. 5 Sub linea vero centeno insignita numero eosdem api- á ces ponentes binarium CC, ternarium CCC, quaternarium CCCC ceterosque certis denominationibus respondere de- creverunt. In sequentibus vero paginularum lineis idem facientes nullo erroris nubilo obtenebrabantur. 10 Scire autem oportet et diligenti examinatione discu- tere in multiplicando et partiendo, cui paginulae digiti et cui articuli sint adiungendi. Nam singularis multiplicator deceni digitos in decenis, articulos in centenis, idem vero singularis multiplicator centeni digitos in centenis, arti- 15 culos in millenis et multiplicator milleni digitos in mil- lenis et articulos in decenis millenis et multiplicator cen- teni milleni digitos in centenis millenis, articulos autem in millenis milibus habebit. Decenus autem suimet ipsius multiplicator digitos in ?0 pagina C inscripta, articulos in millenis, et multiplicator centeni digitos in millenis et articulos in X, et multipli- — cator milleni digitos in X, et articulos in CM, et multipli- — cator centeni milleni digitos in inillenis milibus et articu- — los in XMI habebit. | | ?5 Centenus vero aeque suimet ipsius multiplicator digi- — . tos in X et articulos in C et millenum multiplicans digitos —
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