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
281 243
282 244
283 245
284 246
285 247
286 248
287 249
288 250
289 251
290 252
291 253
292 254
293 255
294 256
295 257
296 258
297 259
298 260
299 261
300 262
301 263
302 264
303 265
304 266
305 267
306 268
307 269
308 270
309 271
310 272
< >
page |< < (217) of 458 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div711" type="section" level="1" n="234">
          <p style="it">
            <s xml:id="echoid-s8165" xml:space="preserve">
              <pb o="217" file="0255" n="255" rhead="Conicor. Lib. VI."/>
            E I ſunt æquales, & </s>
            <s xml:id="echoid-s8166" xml:space="preserve">parallelæ; </s>
            <s xml:id="echoid-s8167" xml:space="preserve">ergo H I æqualis erit, & </s>
            <s xml:id="echoid-s8168" xml:space="preserve">parallela ipſi B E (vel
              <lb/>
            quia additur communis H E, vel propter parallelogrammum B I) ſed prius A
              <lb/>
            R æqualis erat, & </s>
            <s xml:id="echoid-s8169" xml:space="preserve">parallela eidem B E; </s>
            <s xml:id="echoid-s8170" xml:space="preserve">igitur A R, & </s>
            <s xml:id="echoid-s8171" xml:space="preserve">H I æquales ſunt inter
              <lb/>
            ſe, & </s>
            <s xml:id="echoid-s8172" xml:space="preserve">æquidiſtantes; </s>
            <s xml:id="echoid-s8173" xml:space="preserve">ideoque coniungentes A H, R I erunt æquales, & </s>
            <s xml:id="echoid-s8174" xml:space="preserve">paral-
              <lb/>
            lelæ; </s>
            <s xml:id="echoid-s8175" xml:space="preserve">ſuntque anguli A H B, & </s>
            <s xml:id="echoid-s8176" xml:space="preserve">R I E æquales inter ſe, cum ab æqualibus la-
              <lb/>
            teribus in triangulis A B H, & </s>
            <s xml:id="echoid-s8177" xml:space="preserve">R E I æquilateris inter ſe contineantur; </s>
            <s xml:id="echoid-s8178" xml:space="preserve">ergo
              <lb/>
            R I ordinatim quoque applicata eſt ad àiametrum E I; </s>
            <s xml:id="echoid-s8179" xml:space="preserve">atque in ſectionibus æ-
              <lb/>
            qualibus abſciſsæ B H, E I
              <lb/>
              <figure xlink:label="fig-0255-01" xlink:href="fig-0255-01a" number="295">
                <image file="0255-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0255-01"/>
              </figure>
            diametrorum ſimilium, ſci-
              <lb/>
            licet æque inclinatarum ad
              <lb/>
            ſuas ordinatas æquales ſunt
              <lb/>
            inter ſe; </s>
            <s xml:id="echoid-s8180" xml:space="preserve">nec non ordinatæ A
              <lb/>
            H, I R æquales ſunt oſten-
              <lb/>
            sæ; </s>
            <s xml:id="echoid-s8181" xml:space="preserve">igitur ſicut punctum A in
              <lb/>
              <note position="left" xlink:label="note-0255-01" xlink:href="note-0255-01a" xml:space="preserve">ex 10.
                <lb/>
              huius.</note>
            ſectione A B cadit, ita pun-
              <lb/>
            ctum R in ſectione E D exi-
              <lb/>
            ſtit; </s>
            <s xml:id="echoid-s8182" xml:space="preserve">ſed poſitus fuit intra,
              <lb/>
            aut extra ipſam, quod eſt ab-
              <lb/>
            ſurdũ: </s>
            <s xml:id="echoid-s8183" xml:space="preserve">Non igitur recta linea
              <lb/>
            A D maior, aut minor eſſe
              <lb/>
            poteſt, quàm B E; </s>
            <s xml:id="echoid-s8184" xml:space="preserve">ideoque ei
              <lb/>
            quælibet alia intercepta K L æqualis omnino erit. </s>
            <s xml:id="echoid-s8185" xml:space="preserve">Simili ratiocinio oſtendetur
              <lb/>
            æquidiſtans ipſi B E eidem
              <lb/>
              <figure xlink:label="fig-0255-02" xlink:href="fig-0255-02a" number="296">
                <image file="0255-02" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0255-02"/>
              </figure>
            æqualis; </s>
            <s xml:id="echoid-s8186" xml:space="preserve">quapropter interce-
              <lb/>
            ptæ A D, K L, & </s>
            <s xml:id="echoid-s8187" xml:space="preserve">B E æqua-
              <lb/>
            les erunt inter ſe: </s>
            <s xml:id="echoid-s8188" xml:space="preserve">Quod erat
              <lb/>
            oſtendendum.</s>
            <s xml:id="echoid-s8189" xml:space="preserve"/>
          </p>
          <p style="it">
            <s xml:id="echoid-s8190" xml:space="preserve">Si duæ parabolæ B A C,
              <lb/>
            F D E æquales ad eaſdem
              <lb/>
              <note position="right" xlink:label="note-0255-02" xlink:href="note-0255-02a" xml:space="preserve">SCHO-
                <lb/>
              LIVM.</note>
            partes cauæ, conſtitutæ ſue-
              <lb/>
            rint circa axes A K, D G
              <lb/>
            æquidiſtantes, & </s>
            <s xml:id="echoid-s8191" xml:space="preserve">non con-
              <lb/>
            gruentes ſe mutuo ſecabunt.</s>
            <s xml:id="echoid-s8192" xml:space="preserve"/>
          </p>
          <p style="it">
            <s xml:id="echoid-s8193" xml:space="preserve">Ex vertice D axis G D ducatur D H perpendicularis ad axim A K, eum ſe-
              <lb/>
            cans in H, & </s>
            <s xml:id="echoid-s8194" xml:space="preserve">deſcribatur alia parabolæ I H L æqualis prioribus B A, vel E
              <lb/>
            D, cuius axis ſit K H, & </s>
            <s xml:id="echoid-s8195" xml:space="preserve">ver-
              <lb/>
              <figure xlink:label="fig-0255-03" xlink:href="fig-0255-03a" number="297">
                <image file="0255-03" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0255-03"/>
              </figure>
            tex H, & </s>
            <s xml:id="echoid-s8196" xml:space="preserve">ſicuti in propoſi-
              <lb/>
            tione 4. </s>
            <s xml:id="echoid-s8197" xml:space="preserve">additarum factum
              <lb/>
            eſt, reperiatur B F C ordina-
              <lb/>
            tim ad axes applicata ſecans
              <lb/>
            parabolas in E, B, I, & </s>
            <s xml:id="echoid-s8198" xml:space="preserve">axes
              <lb/>
            in G, K, ita vt intercepta
              <lb/>
            B I æqualis ſit D H, ſen G
              <lb/>
            K, quæ in parallelogrammo
              <lb/>
            D K ei æqualis eſt. </s>
            <s xml:id="echoid-s8199" xml:space="preserve">Quoniā
              <lb/>
            parabolæ E D, & </s>
            <s xml:id="echoid-s8200" xml:space="preserve">I H </s>
          </p>
        </div>
      </text>
    </echo>