Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

Table of contents

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[41. COMMENTARIVS.]
[42. LEMMA I.]
[43. LEMMA II.]
[44. LEMMA III.]
[45. LEMMA IIII.]
[46. LEMMA V.]
[47. LEMMA VI.]
[48. II.]
[49. III.]
[50. IIII.]
[51. V.]
[52. DEMONSTRATIO SECVNDAE PARTIS.]
[53. COMMENTARIVS.]
[54. DEMONSTRATIO TERTIAE PARTIS.]
[55. COMMENTARIVS.]
[56. DEMONSTRATIO QVARTAE PARTIS.]
[57. DEMONSTRATIO QVINT AE PARTIS.]
[58. FINIS LIBRORVM ARCHIMEDIS DE IIS, QVAE IN AQVA VEHVNTVR.]
[59. FEDERICI COMMANDINI VRBINATIS LIBER DE CENTRO GRAVITATIS SOLIDORV M.]
[60. CVM PRIVILEGIO IN ANNOS X. BONONIAE, Ex Officina Alexandri Benacii. M D LXV.]
[61. ALEXANDRO FARNESIO CARDINALI AMPLISSIMO ET OPTIMO.]
[62. FEDERICI COMMANDINI VRBINATIS LIBER DE CENTRO GRAVITATIS SOLIDORVM. DIFFINITIONES.]
[63. PETITIONES.]
[64. THEOREMA I. PROPOSITIO I.]
[65. THEOREMA II. PROPOSITIO II.]
[66. THE OREMA III. PROPOSITIO III.]
[67. THE OREMA IIII. PROPOSITIO IIII.]
[68. ALITER.]
[69. THEOREMA V. PROPOSITIO V.]
[70. COROLLARIVM.]
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ARCHIMEDIS
10. quinti
_Eſt autem & s b ſeſquialtera ipſius b r. ]_ Ponitur enim
Hd b ſeſquialtera ipſius b k;
itémq; d ſ ſeſquialtera k r. quare ut to
ta d b ad totam b K, ita pars d s ad partem K r.
ergo & reliqua
19. quintis b ad reliquim b r, ut d b ad b k.
_Quæ ſimiles ſint portioni a b l. ]_ Similes portiones coni ſe-
Kctionum Apollonius it.
i diffiniuit in ſexto libro conicorum, ut ſcri-
bit Eutocius, εν οἱς α χ θεισωνἐν ἑηάστω παραλλήλων τῆ βάσει, ἵσωι
τὸ πλῆθος, ὰι παρὰλληλοι, καὶ αἱ βάσ{ει}ς πρὸς τὰςἀποτεμνομένας
ἀπὸ τῶν διαμέ τρων ταῖς νορυφαῖς ἐν τοῖς αὐτοῖ ς λὄγοιςεἰσἰ, καὶἁι
ἀποτεμνόμεναι πρὸς τάς ἀποτεμνομένας;
hoc est. in quibus ſi du-
cantnr lineæ æquidistantes baſi numero æquales:
æquidiſtantes atq;
baſes ad partes diametrorum, quæ ab ipſis ad uerticem abſcindũtur,
eandem proportionem babent:
it émq; partes abſciſſæ ad abſciſſas.
ducuntur autem lineæ baſi æquidistantes:
ut opinor, deſcripta in ſin
gulis plane rectilinea figura, quæ lateribus numero æqualibus conti
γνωρίμωςneatur.
Itaq; portiones ſimiles à ſimilibus coni ſectionibus abſcindũ
tur:
& earum diametri ſiue ad baſes rectæ, ſiue cum baſibus æ qua-
les angulos facientes, ad ipſas baſes eandem habent proportionem.

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