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
The original is shown on its own: no English is held for this issue yet.
p. 49020£8/ Ne | | z| cexur |S ^ VI De exagono. Exagonus autem ordine in subsequenti dicendus inse- ratur. Describatur etenim exagonus octonario lateraliter S'insignitus. Quem, videlicet octonarium, per se multipli- cans LXIIII efficiam. |. Haec summa, scilicet LXIIIT, qua- ter ducta in CCLVI redundat. His, videlicet CCLVI, si lateris unius: quantitas id est VIII bis ducta adiciatur, CCLXXII apparent. Quorum medium si sumpseris, aream . 10 liuius exagoni explicabis. | «S C^ B ta 5 - | De eptagono. Post haec ut expediamus de eptagoni subsequentis ratione oportet. Qui, videlicet eptagonus, tertio hic in- 15 seritur loco, septenarius quemadmodum in imparium nu- merorum tertius naturaliter ordine apparet. Collocetur etenim eptagonus senaria quantitate circumscriptus. Cuius si lateris unius summam per se multiplicaveris, XXXVI pernotabis. Quae scilicet quantitas, hoc est XXXVI, quin- |
This issue carries a scholarly apparatus: 422 notes on the editor’s variant readings. Scholar · $29 a month, by application — see what it adds →