const math.d2

2 uses

	math (current package)
		erfinv.go#L44: 	d2 = 2.3707661626024532365971225e0
		erfinv.go#L103: 			z2 = ((((((d7*r+d6)*r+d5)*r+d4)*r+d3)*r+d2)*r+d1)*r + d0