Full text: [Nachträge zur reinen Mathematik] (10. Bandes 1. Abteilung)

ÜBER TERNÄRE QUADRATISCHE FORMEN. 
87 
I) ut non omnes a, b, c idem signum habeant, 
II) ut 
div. c. 
max. 
— bc 
residua 
a X 
— ac 
sint 
b x 
— ab 
ipsorum 
c X 
a factt. suis 
quadratis 
liberati 
[Aus Scheda Ae, Varia, Julius 1800, S. 3—5.] 
[3.] 
PROBLEMA. 
Formam ternariam determinantis 0 in binariam transmutare. 
Sol[utio] Casus I. 
Si omnes coefiicientes formae adiunctae sunt 0. 
Sit proposita 
/a, a, a"\ 
U h\ b"j 
habebuntque n, a, a" idem signum. Sit m ipsorum div. comm. max. eodem 
signo acceptus, metieturque etiam ipsos b, b\ h". Tunc erit 
axx-\- ayy-\- a"zz-\- 2byz-{- 2b' xz-\- 2b"xy = la? -f- 23y -f- 
ipsique 3Ì, 23, (£ divisorem communem non habebunt. Accipiantur 
r\ / Qf f ff f\ff ff 
a, P, 7, «, P ? T » a > P » T 
a2l4-PS3 + T® = n 
PY-fY = ^ 
T V- T V = 23, 
a'P"-a"p' = (£ 
ita ut sit
	        
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