Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 2: Opera geometrica. Opera astronomica. Varia de optica

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82367DE CIRCULI MAGNIT. INVENTA. 62116 {1/2} & 705 {1/2}, hoc eſt, partibus 62822. Atque hiſce pro-
inde
omnino major erit circuli peripheria .
Eſt autem 11per 7. huj. jor ratio 62822 ad 20000, longitudinem diametri, quam 3{10/71}
ad
1.
Ergo omnino etiam peripheriæ ad diametrum ratio ma-
jor
erit.
Et invenitur quidem latus inſcripti ſexagintanguli majus
partibus
10467191, qualium radius 100000000 &
latus tri-
gintanguli
minus quam 20905693:
cujus dimidium 10452846 {1/2}
eſt
ſinus arcus æquantis {1/60} circumferentiæ.
Subtenſa autem
erat
10467191.
Ergo differentia 14344 {1/2} minor verâ: & triens
differentiæ
4781 {1/2}, qui additus ad ſubtenſam 10467191 facit
10471972
{1/2}.
Quibus itaque major eſt arcus {1/60} circumferentiæ.
Ductis autem 10471972 {1/2} ſexagies fiunt 628318250. Hiſce
igitur
partibus omnino major eſt circumferentia tota.

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