Clavius, Christoph, Geometria practica

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[Item 1.]
[2.] CHRISTOPHORI CLAVII BAMBER- GENSISE SOCIETATE Iesv. GEOMETRIA PRACTICA.
[3.] Cum gratia & Priuilegio Sac. Cæſ. Maieſtat. Superiorum Permiſu. Mogvntia, Ex Typographeo lOANNIS Albini. ANNO M. DC. VI.
[4.] Perillvstri Ac Generoso D. GEORGIO FVGGERO SENIORI BARONI IN KIRCHBERG, ET VVEISSENHORN Chriſtophorus Clauius è Societate IESV S.P.D.
[5.] Romæ pridie Idvs Septemb. cIↄ. cI. CIIII.
[6.] Clavdivs Aqvaviva Societatis Iesv Præpoſitus Generalis.
[7.] INDEX CAPITVM, PROBLE-MATVM, AC PROPOSITIONVM HORVM VIII. LIBRORVM. PRIMI LIBRI CAPITA.
[8.] SECVNDI LIBRI PROBLEMATA.
[9.] TERTII LIBRI PROBLEMATA.
[10.] QVARTI LIBRI CAPITA.
[11.] QVINTI LIBRI CAPITA.
[12.] SEXTI LIBRI PROPOSITIONES.
[13.] SEP TIMI LIBRI Propoſitiones.
[14.] FINIS.
[15.] PRÆFATIO.
[16.] GEOMETRIÆ PRACTICÆ. LIBER PRIMVS. Tria capita ad dimenſionem linearum ſum-me neceſſaria complectens.
[17.] INSTRVMENTI PARTIVM Conſtructio, atque vſus. CAPVT I.
[18.] CAPVT II.
[19.] SEQVITVR TABELLA.
[20.] PROBLEMATA VARIA TRIANGV-lorum rectilineorum. Capvt III.
[21.] TRIANGVLORVM RECTILINEORVM RECTAN-gulorum problemata. I. PROPORTIONES LATERVM
[22.] II. LATVS.
[23.] III. LATVS.
[24.] IIII. LATVS.
[25.] V. BASEM.
[26.] VI. BASEM.
[27.] VII. ANGVLVM.
[28.] VIII. ANGVLVM.
[29.] TRIANGVLORVM RECTILINEO-rum obliquangulorum Problemata. IX. SEGMENTA LATERIS A Perpendiculari facta.
[30.] X. LATERA DVO.
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          <head xml:id="echoid-head17" xml:space="preserve">PRÆFATIO.</head>
          <p>
            <s xml:id="echoid-s110" xml:space="preserve">
              <emph style="sc">QVandoqvidem</emph>
            Mathematica-
              <lb/>
            rum diſciplinarum ſtadium ſcribendo ingreſſi,
              <lb/>
            nonnullam eius partem, fauente Deo, percurri-
              <lb/>
            mus: </s>
            <s xml:id="echoid-s111" xml:space="preserve">Geometriæ practicæ tractatio omittenda
              <lb/>
            non fuit, vt niſi metam tangere licuerit, ab illa cer-
              <lb/>
            tè quam minimè diſtemus. </s>
            <s xml:id="echoid-s112" xml:space="preserve">Ætatem ſenectute
              <lb/>
            grauem allicit operis iucunditas, laborem leuat
              <lb/>
            varietas, amicorum preces tantum non cogunt, quò mea ferebar
              <lb/>
            ſponte, ſumma cumfeſtinatione properare. </s>
            <s xml:id="echoid-s113" xml:space="preserve">Et verò, cum perpetua
              <lb/>
            multorum annorum experientia compererim, admodum paucos eſ-
              <lb/>
            ſe, qui non in Mathematicis exerceantur eo conſilio, vt quæ didicerint,
              <lb/>
            ad aliquem vſum trahant: </s>
            <s xml:id="echoid-s114" xml:space="preserve">in hoc quicquid eſt laboris veniebam ala-
              <lb/>
            cer, vt qui fructus è Mathematicis percipi poſſint ad humanæ vitæ
              <lb/>
            commoda, non inani venditatione, ſed re ipſa conſtaret. </s>
            <s xml:id="echoid-s115" xml:space="preserve">Etenim dum
              <lb/>
            certa ratio traditur, qua camporum longitudines, altitudines mon-
              <lb/>
            tium, vallium depreſſiones, locorum omnium inæqualitates inter ſe,
              <lb/>
            & </s>
            <s xml:id="echoid-s116" xml:space="preserve">interualla deprehendere metiendo debeamus: </s>
            <s xml:id="echoid-s117" xml:space="preserve">cuilibet liquet, vt
              <lb/>
            arbitror, quantum commodi, vtilitatiſque ſubſtructioni ædificiorum,
              <lb/>
            cultui agrorum, armorum tractationi, contemplationi ſiderum, aliiſ-
              <lb/>
            que artibus, & </s>
            <s xml:id="echoid-s118" xml:space="preserve">diſciplinis ex horum cognitione manare poſſit. </s>
            <s xml:id="echoid-s119" xml:space="preserve">Hæc e-
              <lb/>
            nim vna Mathematicarum rerum ſcientiæ pars, ſicut ab artificibus ob
              <lb/>
            ſui neceſſitatem auidè ſemper eſt arrepta: </s>
            <s xml:id="echoid-s120" xml:space="preserve">ita ob inſignes vtilitates,
              <lb/>
            quas in retota militari ſuppeditat, in maximorum Principum, Regum-
              <lb/>
            que aulis omni tempeſtate verſata eſt. </s>
            <s xml:id="echoid-s121" xml:space="preserve">Quamobrem & </s>
            <s xml:id="echoid-s122" xml:space="preserve">multos, & </s>
            <s xml:id="echoid-s123" xml:space="preserve">eru-
              <lb/>
            ditos viros habuit, qui partes illius omnes accurata, & </s>
            <s xml:id="echoid-s124" xml:space="preserve">diligenti ſcri-
              <lb/>
            ptione perſecuti ſunt: </s>
            <s xml:id="echoid-s125" xml:space="preserve">Inter quos, vt Leonhardus Piſanus, Frater Lucas
              <lb/>
            Pacciolus, Nicolaus Tartalea, Orontius, Cardanus, aliique præcipuas
              <lb/>
            obtinuerunt: </s>
            <s xml:id="echoid-s126" xml:space="preserve">ita eximia in cæteris laude floruerunt. </s>
            <s xml:id="echoid-s127" xml:space="preserve">Primas tamẽ adiu-
              <lb/>
            dicarim 10. </s>
            <s xml:id="echoid-s128" xml:space="preserve">Antonio Magino præſtanti Mathematico; </s>
            <s xml:id="echoid-s129" xml:space="preserve">qui tam etſi tantũ
              <lb/>
            lin earum dimenſiones docuit, ea tamen copia, doctrina, perſpicacita-
              <lb/>
            te cuncta tradidit, vt locum non modo iis, qui ante ſcripſerunt, ſed
              <lb/>
            ſpem poſteris æqualis gloriæ, ne dum maioris, ademiſſe videatur. </s>
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