CHAPITRE X.

w r

230

Formule de M. Cagnoli.

logarith.

C = 76° 35' 36" sinS.. T. r.. ...... 9.9970996

C' = 5 o.io. 3o sin(S—C). 9.0728716

C" = 4o. o. 10 sin(S—C'). 9-7385565

2S = 166.46.16 sin(S—C"). 9 .8368 7 4 o

S= 83.23. 8 logN. 18.6454017

S'—C = 6-47-52 9.3227008

S—C'= 33.i2.58 compl.2.. 9.6989700

S—C"= 45.22.58 compl.cos^C o. 1052342

5S—'2S ~ S = 83 25 S compl.cosiC' 0.0430342

compl.coSïC' 0.0270180

— cos4(A + A' + A") = 99° 5' 18" 9.1969572

La sux’face de notre triangle sera

t = 1* sin i"(A-J- A' + A' — 180 0 ) = r* sin i"(i8 ° 6' 36").

Supposons /• = i logsinx". 4-6855 7 49

65i 9 6" = 18 0 6' 36". 4-8i4 22 io

*= °- 3x6o 79 2.. 9.4997959

Calcul de la Série .

A = x 21.56.202A = 245. I2.4o

0-A = 4 • 49.00

4A = 226.25.20

5 A = 248. 1.406A = 19.38. o

7 A = i 3 x .14.20

8 A=252.50.40

9 A= 14.27.00

tang^C'.

tang^C".

tang^C' tang-iC".

2.. . ..

sin A.

o .2902720..

— tang^C' tangiC".

sin 2 A.

9.6704019

9.5610986

9 .23x5oo5o.3oio3oo9.9502747

9.4628052

8-463ooio

9.9506925

-f- 0.0259255. +8.4 i 36 9 35