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

212 
NACHLASS. 
Differentiando aequationem 84 provenit 
[x—xx)F[2 —a, 2 — 6, 3 — y, x)] 
Sed per formulam IX art. 1 0 fit mutando a, 6, y in —a, —6, 1 —7 
(!—T)( 2 —T1 —y,a?) = (2—■y)(l —y+(«+€— \)a)F{\— a, 1 —-6,2 —■y,a?) 
-j-(l —a)(l — 6) (a?— xx)F[2 — a, 2 — 6, 3 — y, <r) 
unde aequatio praecedens transit in hanc 
jP(«4-1, 6 + 1, a-f-6 + 2—y, 1 — <2?) 
/(«< 6, y)^(«x-f-1, 6 + 1,y + 1, x) 
( a+ g +1 _ Y)(l _ Y) 
a6 
%•(«+1 —y, g+1— T , 2—f) (1—6- 1 a,—T J?(_ «, _ g, 1 _ T , «) 
Mutando autem in aequatione 84, a, 6, y in a + l, 6 + 1, y —|— 1 fit 
F 7 [a —|— 1, 6 —|-1, a -|— 6 -j— 2 — y, 1 —¿p) 
== /(°H" 1 >6 + l,y+l).F(a+l, 6+l,y+l,a?) 
+/(a+l —y, 6 + 1—y, 1 — y)(l-^- a - s -^-hF(—a, — 6, 1 —y, ®) 
Quare quum facile perspiciatur, has duas aequationes idénticas esse debere, fit 
generaliter 
sive mutando a, 6, y in a —1,6 — 1, y — 1 
_ a + 6—Y.g + 6 —t —1 -/ __ 9 
1—y. 2 — y •/ 
fia — 2, 6 — 2, y — 2) 
etc. unde facile concluditur, esse generaliter pro quovis valore integro ipsius k 
f[a — A, 6 — A, y — k)
	        
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