Viviani, Vincenzo, De maximis et minimis, geometrica divinatio : in qvintvm Conicorvm Apollonii Pergaei

Table of contents

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[301.] PROBL. X. PROP. LIX.
[302.] PROBL. XI. PROP. LX.
[303.] PROBL. XII. PROP. LXI.
[304.] PROBL. XIII. PROP. LXII.
[305.] MONITVM.
[306.] THEOR. XXXVIII. PROP. LXIII.
[307.] THEOR. XXXIX. PROP. LXIV.
[308.] THEOR. XL. PROP. LXV.
[309.] THEOR. XLI. PROP. LXVI.
[310.] LEMMA XIII. PROP. LXVII.
[311.] THEOR. XLII. PROP. LXVIII.
[312.] COROLL. I.
[313.] COROLL. II.
[314.] MONITVM.
[315.] DEFINITIONES. I.
[316.] II.
[317.] III.
[318.] IIII.
[319.] PROBL. XIV. PROP. LXIX.
[320.] SCHOLIVM I.
[321.] COROLL. I.
[322.] SCHOLIVM II.
[323.] COROLL. II.
[324.] SCHOLIVM III.
[325.] COROLL. III.
[326.] THEOR. XLIII. PROP. LXX.
[327.] COROLL.
[328.] THEOR. XLIV. PROP. LXXI.
[329.] COROLL.
[330.] THEOR. XLV. PROP. LXXII.
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339153 prop. 7. huius) ipſum erit minus aggregato extremarum poſt B F, F C; qua-
re primum aggregatum, ad rectam B C minorem habebit rationem, quam
ſecundum aggregatum ad eandem B C, ſed primum ad B C eſt vt 118. App.270[Figure 270] gatum triangulorum A E B, D E C ad triã-
gulum A C B, &
ſecundum ad eandem B
C eſt vt aggregatum triangulorum A F B,
G F C ad idem trian gulum A C B, quare
aggregatum A E B, D E C ad triangulum
A C B minorem habebit rationem quàm
aggregatum A F B, G F C ad idem trian-
gulum A C B, vnde aggregatum ex A E
B, D E C minus erit aggregato ex A F B,
G F C, ac propterea aggregatum triangu-
lorum ad punctum E erit _MINIMVM_.
Quod faciendum erat.
COROLL.
HInc, cum ſit vt ſubduplum ad ſubduplum, ita duplum ad duplum, ſi
compleantur parallelogramma B H, C I, ipſorum aggregatum erit
_MINIMVM_, &
c.
PROBL. IV. PROP. X.
Ijſdem poſitis, ac in præcedenti. Si datum ſit in linea B C,
quodlibet aliud punctum F inter inuentum punctum E, &
extre-
mum B, &
oporteat aliud in ipſa punctum aſſignare, quæ ſimul
exhibeant aggregata triangulorum ad verticem inter ſe æqualia.
271[Figure 271]
ERigatur B G perpendicularis, & æqualis ipſi B C, iungatur G C, &
per F agatur F H æquidiſtans B G, &
fiat vt B F ad F H, ita F H ad
aliam F I, &
circa diametrum B I circulus deſcribatur rectam G C ſecans
in H, &
L, & ex L ducatur L M parallela ad G B; dico punctum M eſſe
quæſitum, hoc eſt ſi producantur A F, A M rectam C D ſecantes in

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