Apollonius <Pergaeus>, Apollonii Pergaei Conicorvm Lib. V. VI. VII. paraphraste Abalphato Asphahanensi : nunc primum editi ; additvs in calce Archimedis assvmptorvm liber, ex codibvs arabicis mss Abrahamus Ecchellensis Maronita latinos reddidit, Jo. Alfonsvs Borellvs curam in geometricis versione contulit & [et] notas vberiores in vniuersum opus adiecit

Page concordance

< >
Scan Original
421 382
422 383
423
424 385
425 386
426 387
427 388
428 389
429 390
430 391
431 392
432 393
433 394
434 395
435 396
436 397
437 398
438 399
439 400
440 401
441 402
442 403
443 404
444 405
445 406
446 407
447 408
448 409
449 410
450 411
< >
page |< < (409) of 458 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div1166" type="section" level="1" n="381">
          <p style="it">
            <s xml:id="echoid-s13597" xml:space="preserve">
              <pb o="409" file="0447" n="448" rhead="Aſſumpt. Liber."/>
            recta linea E G ſecatur in A extrema, ac media ratione, cuius maius ſegmen-
              <lb/>
            tum eſt E A latus decagoni, & </s>
            <s xml:id="echoid-s13598" xml:space="preserve">recta A H ſimiliter diuiditur in G, cuius ma-
              <lb/>
            ius ſegmentum eſt G H decagoni latus, & </s>
            <s xml:id="echoid-s13599" xml:space="preserve">tota E H ſecatur in A, & </s>
            <s xml:id="echoid-s13600" xml:space="preserve">G ex-
              <lb/>
            trema, ac media ratione, pariterque recta E B ſimiliter ſecatur in H, cuius
              <lb/>
              <figure xlink:label="fig-0447-01" xlink:href="fig-0447-01a" number="523">
                <image file="0447-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0447-01"/>
              </figure>
            minus ſegmentum H B eſt æquale lateri exagoni circulo inſcripti. </s>
            <s xml:id="echoid-s13601" xml:space="preserve">Breuius ta-
              <lb/>
            men propoſitio ſic demonſtrari poſſet.</s>
            <s xml:id="echoid-s13602" xml:space="preserve"/>
          </p>
          <p style="it">
            <s xml:id="echoid-s13603" xml:space="preserve">Quia oſtenſa eſt C D æqualis D G, & </s>
            <s xml:id="echoid-s13604" xml:space="preserve">A D æqualis eſt eidem D C; </s>
            <s xml:id="echoid-s13605" xml:space="preserve">cum
              <lb/>
            ambo ſint latera decagoni, ergo D G æqualis eſt D A. </s>
            <s xml:id="echoid-s13606" xml:space="preserve">Poſtea iuncta A C, quid
              <lb/>
            angulus A H D, vel C H D quinta pars eſt duorum rectorum, ergo angulus
              <lb/>
            C D H ad baſim iſoſcelij, duæ quintæ partes erit duorum rectorum, & </s>
            <s xml:id="echoid-s13607" xml:space="preserve">ideo an-
              <lb/>
            gulus C D H duplus erit anguli D H E, eſtque externus angulus C D H æqua-
              <lb/>
            lis duobus internis, & </s>
            <s xml:id="echoid-s13608" xml:space="preserve">oppoſitis D H E, & </s>
            <s xml:id="echoid-s13609" xml:space="preserve">D E H in triangulo D E H, ergo
              <lb/>
            angulus C D H duplus quoque erit reliqui anguli E, & </s>
            <s xml:id="echoid-s13610" xml:space="preserve">propterea angulus D
              <lb/>
            H E æqualis erit angulo E, & </s>
            <s xml:id="echoid-s13611" xml:space="preserve">ſubtenſa latera D E, D H æqualia quoque erunt,
              <lb/>
            ſed prius D A, D G æqualia erant ſubtendentia angulos æquales, & </s>
            <s xml:id="echoid-s13612" xml:space="preserve">reliqui
              <lb/>
            anguli eiuſdem ſpeciei ſunt, igitur E A æqualis eſt H G. </s>
            <s xml:id="echoid-s13613" xml:space="preserve">Reliqua manifeſta
              <lb/>
            ſunt.</s>
            <s xml:id="echoid-s13614" xml:space="preserve"/>
          </p>
          <p style="it">
            <s xml:id="echoid-s13615" xml:space="preserve">In præfatione huius operis memini non eße omnino improbabile hunc libellum
              <lb/>
            Archimedis non alium fuiſſe ab illo antiquo lemmatum libro ab Eutocio reper-
              <lb/>
            to, quod præcipuè ex verbis eiuſdem Eutocij in Comment. </s>
            <s xml:id="echoid-s13616" xml:space="preserve">propoſit. </s>
            <s xml:id="echoid-s13617" xml:space="preserve">4. </s>
            <s xml:id="echoid-s13618" xml:space="preserve">lib. </s>
            <s xml:id="echoid-s13619" xml:space="preserve">2. </s>
            <s xml:id="echoid-s13620" xml:space="preserve">de
              <lb/>
            Sphæra, & </s>
            <s xml:id="echoid-s13621" xml:space="preserve">Cylindro comprobatum fuit: </s>
            <s xml:id="echoid-s13622" xml:space="preserve">illa fideliſſimè translata ex textu Græco ab
              <lb/>
            amicis doctiſſimis cum iam in præfatione excuſa eßent aliam tranſlationem ex
              <lb/>
            Arabico Manuſcripto Sereniſſimi Magni Ducis miſit Excell. </s>
            <s xml:id="echoid-s13623" xml:space="preserve">Abrahamus Ecchel-
              <lb/>
            lenſis deſumptam ex editione Abuſahli Alkuhi qui pariter librum ordinatio-
              <lb/>
            nis lemmatum Archimedis conſcripſit, vt in proemio huius operis teſtatur
              <lb/>
            Almochtaſſo. </s>
            <s xml:id="echoid-s13624" xml:space="preserve">Verba eius ſunt hæc, quæ paulo clarius propoſitum confirmare vi-
              <lb/>
            dentur: </s>
            <s xml:id="echoid-s13625" xml:space="preserve">& </s>
            <s xml:id="echoid-s13626" xml:space="preserve">meminit Eutocius Aſcalonita in Comment. </s>
            <s xml:id="echoid-s13627" xml:space="preserve">huius libri, quod
              <lb/>
            Archimedes promiſerit demonſtrationem huius in hoc ſuo libro, quod
              <lb/>
            in nullo exemplari reperitur, quod promiſit. </s>
            <s xml:id="echoid-s13628" xml:space="preserve">Atque ita vnuſquiſque tam
              <lb/>
            Dyoniſodorus, quàm Diocles poſt illum progreſſus eſt per aliam viam,
              <lb/>
            quàm ille (ſcilicet Archimedes) in hoc libro in diuiſione Sphæræ in
              <lb/>
            duas partes, quæ datam habeant proportionem. </s>
            <s xml:id="echoid-s13629" xml:space="preserve">Dixit, & </s>
            <s xml:id="echoid-s13630" xml:space="preserve">ego reperi </s>
          </p>
        </div>
      </text>
    </echo>