.1 KEACT.INCF. TUIIORF.M 267 



I'lic (lii\ iiik;-|>(>int imiH'd.iiur is given l)y 



.\ - :x, - ^'P^ I), - ^'P> £,(.V,+X) . . . (Xj,-2+x) ' 



where O^Ai ^.v.^.vj^ . . . ^Xin-i^Xi„-\, since the roots of D are 

 separated by the riKits of D^. Upon substituting .v=— />- and inlro- 

 ducing the notation n = E R^ and p\, p\. . . . , p\n-\=X\, Xj, .... .rj,_i, 

 resiH-etively, we see that formula (1) is completely verified as the 

 most general ilrixing-point imjiedaiKc obtainable b\- means of a finite 

 resistanceless network. 



