Template:Math/EQ QplusHalf01

	$Q_{+\frac{1}{2}}(z)$	$=$	$z\sqrt{\frac{2}{z+1}}K\left(\sqrt{\frac{2}{z+1}}\right)-[2(z+1){]}^{1/2}E(\sqrt{\frac{2}{z+1}})$
Abramowitz & Stegun (1995), p. 337, eq. (8.13.7)