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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi, De Algebra Tractatus; Historicus & Practicus. Anno 1685 Anglice editus; Nunc Auctus Latine. Cum variis Appendicibus; Partim prius editis Anglice, Partim nunc primum editis] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi, De Algebra Tractatus; Historicus & Practicus. Anno 1685 Anglice editus; Nunc Auctus Latine. Cum variis Appendicibus; Partim prius editis Anglice, Partim nunc primum editis (shelfmarks Leibn. Marg. 100:1/2, Stück 2; Leibn. Marg. 100:1/2)
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DEHSECTIONIBUS Cap. VII.
12. Si A = 165 (Tum V = 250. FL H = GV: 2 + V 3: (Der 56.) FrBO
13. Si A= 15 2B4 = C9 + D4L (CDY: 2 + 13: -) 16+ 12
24. Si A = 105 (Tum V = 30. Et _ = G V: 2 - Y 3: (per SZ.) ErGO
25. Si4 = 75 289 = C9. + D9= (CDY: 2 -13: =) =
5 - V
VZCD.
(Tum V = 165. EE (per 5 12, ) ∞ = 6Y: 2 + Y: 2 + Y3.
16. Si A = 1722) =CV: 2 + V6+ Y.
22. SIA= 2. 2 + Y. 2 + Y3. =) CDr. 2+ Y6 + 12
(Tum V = 25. EL (per 6 13,) _ = G V: 2 - V: 2 + V3.
28. Si A = 97 3) = CV: 2-
29. Si A = 82 3
16+ Y=
2 + Y3 =) CDY: 2- Y6+ Y2
(Tum V = 205, Et (Per 5 24,) _ = C V: 2 + V: 2 = Y 3
20. Si A = 242 5) = C Y: 2 + Y= V2. Et B9 = C9 + D9+ (CDV: 2I V:
22. SiA = 3 : 2 - 13. =) CDY. 24Y6-12
Tum V = 75. FF (per 8 25, ) _ = C V: 2. -V: 2 -Y 3.
22. Si A = 127 2) = 61: 2 - 16 -1 2 e. B9 = C9 + D9= (CDY: 2 V:
23. Si A = 523 2 - Y 3. = ) CDV: 2 -16-12
Ec similirer procelendum erit ad minores ArcuS, determinandos per gradtuum
Oyadrances. Nam prout hic, OD0 6 4, 5, F2, 23, 54, 25, perticiuntur 58, 9, 10,
2F, 16, 57, 28, 29, 29, 27, 22, 23, ubi proceditur ad Dimidios gradus: Ita, h2.
ruta
ultra li libet
PorrO: ANumpro (uc alibi probaio,) quod subrenta praduum 36, seu L acus
inseripei regularis Decaponi, sic VS = = R (per 3 F. 23, aut 4 FL. 24. aut
555, 56, CaB. 4. hujus. ). Sic inde procedimus.
e0
24. Si A = 108
25. Si A =, 72
(Tum Y = 36. FC ∞ = 15- +6 =c,3-15 = bY.
2-25FE Et B9- C4+9= (CDV. 2
CDr 3= 15=
0
(Tum V = 208. Et _ (per 5 24,) OY: 2 +
26. di A = 244
27. Si A = 36
CY3+ 15 v5 +
2415-2. = e0v5 +V5
15+ LCD
28. Si
380
id
12S
113
13
Aid
131
18
ee
ABX
a
l
u
idia