Barrow, Isaac, Lectiones opticae & geometricae : in quibus phaenomenon opticorum genuinae rationes investigantur, ac exponuntur: et generalia curvarum linearum symptomata declarantur

Table of contents

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[81.] Not.
[82.] Not.
[83.] Series quarta.
[84.] Not.
[85.] Series quinta.
[86.] Series ſexta.
[87.] Not.
[88.] Series ſeptima.
[89.] Not.
[90.] Series octava.
[91.] Series nona.
[92.] Not.
[93.] Series decima.
[94.] Series undecima.
[95.] Not.
[96.] Series duodecima
[97.] Series decima tertia
[98.] Not.
[99.] Laus DEOO ptimo Maximo. FINIS.
[100.] ERRATA
[101.] Addenda Lectionibus Geometricis.
[102.] _Probl_. I.
[103.] _Probl_. II.
[104.] _Probl_. III.
[105.] Addenda Lectionibus Geometricis.
[106.] _Theor_. I.
[107.] _Theor_. II.
[108.] _Theor_. III.
[109.] _Theor_. IV.
[110.] _Theor_. V.
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page |< < (137) of 393 > >|
330137 in quarto _a_ + {_cc_/4_a_}& gt;_ n_; quæ tamen inæqualitas eo minor eſt, quò
AE (vel _n_) major exiſtit.
_a_ + {_cc_/_a_} = _n_.
_a_ + {_cc_/_a_} = {_nn_/_a_}.
_a_ + {_cc_/_a_} = {_n_3/_aa_}.
_a_ + {_cc_/_a_} = {_n_4/_a_3}.
Poſſit hæc ſeries explicari juxta præcedentium modum ſecundum,
11Fig. 212.&
eaſdem adhibendo curvas LXL, MXM, NXN; quarum nimi-
rum proprietas eſt, ut rectâ GK ductâ ad AH utcunque perpendicu-
lari, ſit GL = {_nn_/AG};
& GM = {_n_3/AGq}; & GN = {_n_4/AGcub}.
Nam ſi fiat angulus HAR ſemirectus, & utcunque ducatur GEO
ad AH perpendicularis;
& ſit GE. _c_: :_c_. EO; & per O intra a-
ſymptotos AD, AR deſcribatur _hyperbola_ OO;
hujuſce cum expo-
ſitis lineis LXL, MXM, NXN interſectiones, radices _a_ reſpectivas
determinabunt;
ductis utique LG, MG, NG ad AH perpendicu-
laribus;
erunt interceptæ AG ipſis _a_ æquales reſpectivè.
Poſſint conſimili modo ſubſequentes omnes æquationes explicari;
ſed eas modo duntaxat priore dabimus expoſitas.
Series quinta.
22Fig. 213.
{_cc_/_a_} - _a_ = _n_.
_cc_ - _aa_ = _nn_.
_cca_ - _a_3 = _n_3.
_ccaa_ - _a_4 = _n_4.

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