Template:Math/EQ Toroidal00

	$P_{\nu }^n(z)$	$=$	$\frac{\mathrm{\Gamma }(\nu +n+1)}{\mathrm{\Gamma }(\nu -n+1)}{P}_{\nu }^{-n}(z)$
A. Erdélyi (1953):  Volume I, §3.3.1, p. 140, eq. (7)