Gravesande, Willem Jacob 's, Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1
page |< < (284) of 824 > >|
419284PHYSICES ELEMENTA
C c, c E:: CA, AT, &
M
m, m O :: ML, LV.
Sunt autem proportionalia antecedentia, in hiſce proportionibus
Cc
, M m :
: CA, ML ; ergo & conſequentia c E, m O : : AT, LV: 44983. ſed ſunt æquales c E, m O; idcirco & AT, LV.
Si ſervatis ordinatis AC, DE, FG, HI & c. ſervataque æqualitate di-
55985. ſtantiarum AD, DF, FH, &
c. diſtantiæ augeantur, aut minuantur,
66TAB. XXXVII.
fig
. 1.
manifeſtum eſt logarithmicam mutari, ſubtangentemque etiam mutari in
eadem
ratione in qua diſtantiæ mutantur;
nam in triangulo C c E, ſervato
77TAB. XXXVII.
fig
. 2.
latere C c, ſi mutetur c E, in triangulo ſimili CAT, cujus latus CA ſerva-
tur
, in eadem ratione cum c E mutabitur AT.
Etiam in eadem ratione in qua ſingulæ diſtantiæ minores mutantur, mu-
88TAB. XXXVII.
fig
2.
tantur ſummæ diſtantiarum quatumcunque:
id eſt ut mutatur AD ſic &
mutatur
AH, log.
rationis AC ad HI; unde ſequitur, in diverſis logari-
99986. tbmicis ſubtangentes eſſe inter ſe, ut ſunt logarithmi ear undem rationum.
In Tabulis logarithmorum quas editas habemus, logarithmus rationis u-
1010987. nius ad decem eſt ipſa unitas, &
logarithmi rationum intermediarum per
fractiones
decimales exprimuntur, eſtque ſubtangens logarithmicæ tabularum
o
, 43429.
44819.

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