I3<J METH. FACIL. ATOVE EXPEDIT. INTECR, 



ea fiierit in numenim qiicmcr.n ]iie imparcm partium ae- 

 Tab. ir. qualiiim diiiifd. Hanc obaMn erit chord A ( ^ -j- ^ ) ~H 

 **• '■ chord. A (g -h 3 e ^ -i- chord. A(^-h5e)H-----^- 

 chord. A ( ^ -h ( 4;;/— 3 q) — o. Si crgo pcripheriii cir- 

 culi in numemm qucmcuiique imparcm partium aequahum 

 ▼erbi gratia in noucm partcs aequalcs Tp, /)Q^, Q^q, ^R, 

 Rr, rS, Si, jT, TP diuidatur atquc in pcriphcrii 

 pundum capiatur quodcunque A ; cx quo nd fingula pe- 

 riphcriac puncla chordac ducautur , crit pofita vna pcri- 

 phcriae partc nona — g , ct arcu AP pro arbitrio as- 

 fumto zz ^ crit 



chord. A (^-h e) = Aplchord. A (^-f- 11 g) =r— AQ^ 

 chord. A (^-hSC) = A^/chord. A (g-h 13 e) — ~ A R 

 chord. A ($-+- 5e) ~ Archord. A (^-+- i5e) =— A S 

 chord. A ( ^ -h 7e ) = A j chord. A(^-f-i7e)=-AT 



chord. A(4-hpe)=^- AP ; 

 chordae cnim arcuum tota pcriphcria maiorum , p.uitcr 

 ac finus arcuum fcmipcriphcria maionim , fiunt ncgatiuac. 

 Ent' crgo duclis vti pracccpimus chordis , 



Ap-hA^-HAr-HAjzrAP + AQ^+AR-f-AS-hAT 



fiuc 

 AP-Ap4-AQ-A^+AR-Ar + AS-Aj-hAT— p 



Qiiod cft thcorcma circa chordas non inclcgans , notuni 

 quidcm , at cx tracitis pracccptis fponte qiufi dcriuatum. 



§.38. Rcfolutionem formulanim a + fJ.Y" ct «4 f3v"-f 

 Y.V" in fidorcs fufub cxpofuimus, coqu(xi f()rmulac(]uaiuiim- 

 iiis compofltac in ciu^^modi f()rmnlas rclolui pofliint; cxquo (e- 

 cuudum hacc piacccpta fbrmularummagisconipoiitanimtinf^o- 



rcs 



