Apollonii Pergaei quae graece exstant cum ... - Wilbourhall.org

Apollonii Pergaei quae graece exstant cum ... - Wilbourhall.org Apollonii Pergaei quae graece exstant cum ... - Wilbourhall.org

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14 KSJNIK^N d'. Tciv avtcav ovrcov tb ^ ^rj^stov scxo iv rij icpfl^g yoivCa r^g vfco t(Dv a0v[i7ttc6tcov TtSQisxoiiEvrjg. keycj, otL xal ovtcog Ta 5 avta 6v[iPy66tai. ^ X^ ^ / /Z riypGi yag icpaTtto- ^evrj rj z/0, Tcal iitL- ^svxd^etaa rj 0B TtiTttstcj, el dvvatov, ^rj dta 10 tov Z, aXka dta roi) H. L0ri aga idtlv rj ^E tfi EH' OTteQ atoTtov vTtoKeLtai yccQ rj z^E tij EZ t0ri. 15 T^v avtd5v ovtcov e6tc3 to z/ Ofi^etov inl fiLccg tcov d0v^7ttcota)v, xal ta XoLTta yLvsdd^co ta avtd. leyG)^ otL rj aTtb trjg dcprjg iit dnqav trjv dito- Xrjipd^et^av dyo^evr} 7taQdX2.r}Xog e^tat tfj d6v^7ttootG), icp' rjg s(StaL t6 z/ arj^stov. 20 seto yccQ td siQrj^Eva, xal xslG&co tfj ^E t6rj 7] EZ, xal ditb tot) B TtaQaXXrjXog tfi MN ri%^co, sl dvvatov, rj BH. tdrj ccQa rj ^E tfj EH' ojtSQ dto- Ttov vjtoKSLtaL yaQ rj ^E trj EZ i6rj. -9-'. 26 ^Edv dTtb tov avtov arj^SLOv dvo svd^stat dxd-co^L tsiivov0aL X(6vov to^rjv ij xvkXov TtsQLcpsQeLav eKateQa Katd dvo arj^eta, Kal cog i'xov6iv aC olaL JtQbg tdg 25. 8vo] § V. 27. 8vo] ^ V.

CONICOKUM LIBER IV. 15 YIL lisdem positis piinctum z/ in angulo positum sit, qui angulo ab asymptotis comprehenso deinceps est positus. dico, sic quoque eadem adcidere. ducatur enim contingens ^0, et ducta 0JB, si fieri potest, per Z ne cadat, sed per H. erit igitur ^E = EH\ quod absurdum est; supposuimus enim, esse ^E = EZ. VIII. lisdem positis punctum z/ in alterutra asymptotarum positum sit, et cetera eadem sint. dico, rectam a puncto contactus ad extremam rectam abscisam ductam ei asymptotae parallelam esse, in qua positum sit punctum z/. sint enim ea, quae diximus, et ponatur EZ = zlE, et a 5 rectae MN parallela ducatur, si fieri potest, BH, itaque JE = EH [III, 34]; quod absurdum est; supposuimus enim, esse /lE = EZ. IX. Si ab eodem puncto duae rectae ducuntur coni sectionem uel arcum circuli singulae in binis punctis secantes, et ut totae se babent ad partes extrinsecus

14 KSJNIK^N d'.<br />

Tciv avtcav ovrcov tb ^ ^rj^stov scxo iv rij icpfl^g<br />

yoivCa r^g vfco t(Dv a0v[i7ttc6tcov TtSQisxoiiEvrjg.<br />

keycj,<br />

otL xal ovtcog Ta<br />

5 avta 6v[iPy66tai. ^ X^ ^ / /Z<br />

riypGi yag icpaTtto-<br />

^evrj rj z/0, Tcal iitL-<br />

^svxd^etaa rj 0B TtiTttstcj,<br />

el dvvatov, ^rj dta<br />

10 tov Z, aXka dta roi) H.<br />

L0ri aga idtlv rj ^E<br />

tfi EH' OTteQ atoTtov<br />

vTtoKeLtai yccQ rj z^E tij EZ t0ri.<br />

15 T^v avtd5v ovtcov e6tc3 to z/ Ofi^etov inl fiLccg<br />

tcov d0v^7ttcota)v, xal ta XoLTta yLvsdd^co ta avtd.<br />

leyG)^ otL rj aTtb trjg dcprjg iit dnqav trjv dito-<br />

Xrjipd^et^av dyo^evr} 7taQdX2.r}Xog e^tat tfj d6v^7ttootG),<br />

icp' rjg s(StaL t6 z/ arj^stov.<br />

20 seto yccQ td siQrj^Eva, xal xslG&co tfj ^E t6rj<br />

7] EZ, xal ditb tot) B TtaQaXXrjXog tfi MN ri%^co, sl<br />

dvvatov, rj BH. tdrj ccQa rj ^E tfj EH' ojtSQ dto-<br />

Ttov vjtoKSLtaL yaQ rj ^E trj EZ i6rj.<br />

-9-'.<br />

26 ^Edv dTtb tov avtov arj^SLOv dvo svd^stat dxd-co^L<br />

tsiivov0aL X(6vov to^rjv ij xvkXov TtsQLcpsQeLav eKateQa<br />

Katd dvo arj^eta, Kal cog i'xov6iv aC olaL JtQbg tdg<br />

25. 8vo] § V. 27. 8vo] ^ V.

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