Full text: de Sacrobosco, Johannes: Iohannis de Sacro Bvsto Libellvs de Sphaera : accessit eivsdem avtoris compvtvs ecclesiasticus, et alia quaedam, in studiosorum gratiam edita


hatur ſeptenarius, quoties poterit, & remanebit
unitas, quæ est
R egularis A prilis, & ſimiliter faci-
endum est de omnibus alijs
M enſibus, hoc etiam præ-
notato, quod ſi nihil ſit reſiduum, Septenarius erit

R egularis M enſis ſubſequentis. P er hos autem uer-
ſus ſine labore poſſunt haberi omnium
M enſium R e-
gulares.

  • Q uinq; N o. M ar. I u: F e: Sex: A. I ul: aſſem, Sep:
    D eq; ſeptem.
  • O c: duo: M a: I aq; tres habet. A u: duo bis regu-
    lares.

H abitis igitur C oncurrente, & R egulari, in ſi-
mul iungantur, & ſi ex eorum coniunctione reſul-
tet Septenarius, uel minor numerus, à tali
F eria in-
cipit
M enſis, cuius regularem ſumpſiſti, Si autem
maior, reijce ſeptem, & quotus erit numerus reſidu-
us, à tali
F eria incipit M enſis, cuius regularis ſume-
batur.

127. V nde uerſus:

  • D ant feriam M enſis concurrens & R egularis.
    C um plus ſit ſeptem, reliquum cape, reijce ſe-
    ptem.

D icitur autem R egularis, quia regulariter cum
concurrente primam feriam
M enſis oſtendit. E t di-
citur Solaris ad differentiam
R egularis L unaris.

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