Full text: [Allgemeine Analysis] Theoria combinationis observationum erroribus minimis obnoxiae (3. Band)

308 
NACHLASS. 
rursus esset compositus, in quo casu manifesto quaevis periodus ¡x terminorum 
in plures periodos minores subdividi potest. Ceterum ex pluribus aliis annota 
tionibus applicationi practicae inservientibus hic sequentes tantummodo attinge- 
Valores talium aggregatorum 
mus. 
Acos\a-\-Bcos\b-\- Ceos\c-\-DeosXöf-f- etc. == p 
A sinXa-(--BsinX6-|- CsinXc-f-DsinX^-}- etc. = q 
(ubi ut in praecedentibus, supponimus b — a = c— b = cl c etc. = ^-360°= A) 
saepius, siquidem nondum est a — 0, commodius determinantur per formulas 
AJ5 cos X A-f-Ceos2XA-(-X)cos3XA -j- etc. = P 
J3sinXA-)- Csin2XA-)-i>sin3XA -f- etc. = Q 
p = Pcosa— Qsin«, q = P sin a -f- Q cos a, sive etiam faciendo 4 = tangep, 
atque — = per has p = Rcos(cp-|-a), q = -Rsin(cp-f-a). 
28. 
Exemplum. In commercio literario a ciar, barone de Zach edito, vol. X 
p. 188 invenitur tabula, limitem borealem et australem zodiaci Palladis exhibens. 
Utriusque limites declinatio tamquam functio periodica ascensionis rectae specta 
tur , quae in tabula illa per singulos quinque gradus progreditur. Ad illustra 
tionem disquisitionum praecedentium applicationem ad limitem borealem hic fa 
ciemus , cuius itaque declinatio nobis erit X, ascensio recta x. Excerpimus ex 
tabula illa periodum sequentem 12 terminorum 
X 
X 
0° 
6° 4 8' Bor. 
= -f- 408' 
30 
1 29 
. . + 89 
60 
1 6 Austr. 
. . — 66 
90 
0 10 Bor.. . 
. . + 10 
120 
5 38 
. . 4- 338 
1 50 
13 27 
. . -f- 807 
180 
20 38 
. . -j-1238 
210 
25 11 
.. 4-1511 
240 
26 23 
. . 4-1583 
270 
24 22 
. . 4-1462 
300 
19 43 
. . 4-1183 
330 
13 24 
. . -f 804
	        
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