const math.d7

2 uses

	math (current package)
		erfinv.go#L49: 	d7 = 1.4859850019840355905497876e-9
		erfinv.go#L103: 			z2 = ((((((d7*r+d6)*r+d5)*r+d4)*r+d3)*r+d2)*r+d1)*r + d0