https://gate.unigre.it/mediawiki/index.php?action=history&feed=atom&title=Page%3AOrganum_mathematicum_libris_IX._explicatum_%281668%29.djvu%2F362Page:Organum mathematicum libris IX. explicatum (1668).djvu/362 - Revision history2026-04-06T01:19:28ZRevision history for this page on the wikiMediaWiki 1.35.7https://gate.unigre.it/mediawiki/index.php?title=Page:Organum_mathematicum_libris_IX._explicatum_(1668).djvu/362&diff=113551&oldid=prevIrene Pedretti: /* Proofread */2021-08-03T09:40:52Z<p><span dir="auto"><span class="autocomment">Proofread</span></span></p>
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<center>''Decimotertio''</center><br />
Ad inveniendum Collum KA subtrahatur dimidia Cortina A M, (quae aequalis est Faciei H C) a KM; remanebit KA.<br><br />
KM inventa est 349706 (3)<br><br />
AM aequalis ipsi HC, est 240000 (3)<br><br />
Hac subtracta a KM, remanet KA 109706 (3)<br><br />
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<center>''Decimoquarto''</center><br />
Ad inveniendam Defensionem fingentem HB, consideretur triangulum rectangulum HQB, in quo duo latera sunt cognita, nempe HQ & QB: nam si HG addatur ad GQ, aequalem ipsi AB, habetur HQ; QB vero aequalis est ipsi GA; angulus quoque ad Q est rectus. Multiplicetur igitur HQ per se ipsam, & QB quoque per se ipsam; habebis duo quadrata rectarum HQ & QB: haec addita simul sunt aequalis quadrato rectae HB, ''per 47. Primi;'' a quo quadrato HB si extrahatur Radix quadrata, habebitur latus HB. Sequitur Operatio.<br><br />
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HG inventa est 231823 (3)<br><br />
GQ, aequalis ipsi AB, est 480000 (3)<br><br />
Haec addita ad HG, facit HQ 711823 (3)<br><br />
Haec ducta in se, dat quadratum HQ 506701983329 (6)<br><br />
QB, aequalis ipsi GA, est 122117 (3)<br><br />
Haec ducta in se, dat quadratum QB 14992561689 (6)<br><br />
Huic si addatur quadratum HQ 506701983329 (6)<br><br />
Producitur Quadratum rectae HB 521614545018 (6)<br><br />
Huius radix quadrata dat fere rectam HB 722222 (3)<br><br />
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<center>Annotatio</center><br />
''Ad eundem modum calculantur reliquarum figurarum regularium linea. Si aliquarum figurarum angulis adbarens minuto secundo, quarum sinus, tangentes, & secantes non continentur in Tabula sinuum; quarenda est par propotionalis modo dicta in Curso Mathematico, & passim apud alios obvio.''<noinclude><references/> {{TurnPage}}</noinclude></div>Irene Pedretti