Bion, Nicolas, Traité de la construction et principaux usages des instruments de mathématique, 1723

Table of figures

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[41] 11F D E M P N O F
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[42] 12
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[43] 13
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[44] 14
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[45] 14
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[46] 15G E D H A B I C F
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[47] 16
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[48] 17
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[49] 18
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[50] 19
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[51] 20
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[52] 21
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[53] 22
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[54] 23
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[55] 24
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[56] 25
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[57] 26
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[58] 27
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[59] 28
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[60] 29
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[61] 30
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[62] 31
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[63] 32A B
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[64] 1
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[65] 2
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[66] 3
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[67] 4
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[68] 5
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[69] 6
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[70] 7
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        <div xml:id="echoid-div10" type="section" level="1" n="9">
          <head xml:id="echoid-head8" xml:space="preserve">DEFINITIONS</head>
          <head xml:id="echoid-head9" xml:space="preserve">NECESSAIRES
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          POUR
            <lb/>
          L'INTELLIGENCE DE CE TRAITÉ.</head>
          <p>
            <s xml:id="echoid-s289" xml:space="preserve">LE Point eſt ce qui n'a aucunes parties, & </s>
            <s xml:id="echoid-s290" xml:space="preserve">qui par con-
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              <note position="right" xlink:label="note-015-01" xlink:href="note-015-01a" xml:space="preserve">Premiere
                <lb/>
              Planche.
                <lb/>
              Figure 1.</note>
            ſequent eſt indiviſible.</s>
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          </p>
          <p>
            <s xml:id="echoid-s292" xml:space="preserve">La Ligne eſt une longueur ſans largeur, & </s>
            <s xml:id="echoid-s293" xml:space="preserve">c'eſt l'é-
              <lb/>
              <note position="right" xlink:label="note-015-02" xlink:href="note-015-02a" xml:space="preserve">Fig. 2.</note>
            coulement du Point.</s>
            <s xml:id="echoid-s294" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s295" xml:space="preserve">Il y a de trois ſortes de Lignes, la droite, la courbe & </s>
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            mixte.</s>
            <s xml:id="echoid-s297" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s298" xml:space="preserve">La Ligne Droite eſt la plus courte de toutes celles qu'on peut ti-
              <lb/>
              <note position="right" xlink:label="note-015-03" xlink:href="note-015-03a" xml:space="preserve">Fig. 2.</note>
            rer d'un point à l'autre.</s>
            <s xml:id="echoid-s299" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s300" xml:space="preserve">La Ligne Courbe eſt celle qui ne va pas directement d'une de
              <lb/>
              <note position="right" xlink:label="note-015-04" xlink:href="note-015-04a" xml:space="preserve">Fig. 3.</note>
            ſes extremicez à l'autre, mais qui s'en écarte par un détour.</s>
            <s xml:id="echoid-s301" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s302" xml:space="preserve">La Ligne Mixte eſt celle dont une partie eſt droite, & </s>
            <s xml:id="echoid-s303" xml:space="preserve">l'autre
              <lb/>
              <note position="right" xlink:label="note-015-05" xlink:href="note-015-05a" xml:space="preserve">Fig. 4.</note>
            courbe.</s>
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          <p>
            <s xml:id="echoid-s305" xml:space="preserve">Les extremitez des Lignes ſont des Points.</s>
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          <p>
            <s xml:id="echoid-s307" xml:space="preserve">Les Lignes comparées les unes aux autres ſuivant leurs poſi-
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            tions ou ſituations, ſont ou paralleles, ou perpendiculaires, ou
              <lb/>
            obliques.</s>
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          <p>
            <s xml:id="echoid-s309" xml:space="preserve">On appelle Lignes Paralleles celles qui conſervent toûjours entre
              <lb/>
              <note position="right" xlink:label="note-015-06" xlink:href="note-015-06a" xml:space="preserve">Fig. 5.</note>
            elles une même diſtance, & </s>
            <s xml:id="echoid-s310" xml:space="preserve">qui étant prolongées de part & </s>
            <s xml:id="echoid-s311" xml:space="preserve">d'au-
              <lb/>
            tre, ne ſe rencontrent jamais, ſoit que les Lignes ſoient toutes
              <lb/>
            deux droites, ou toutes deux courbes.</s>
            <s xml:id="echoid-s312" xml:space="preserve"/>
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