const math.a2

2 uses

	math (current package)
		erfinv.go#L19: 	a2 = 6.9706266534389598238465e2
		erfinv.go#L94: 		z1 := ((((((a7*r+a6)*r+a5)*r+a4)*r+a3)*r+a2)*r+a1)*r + a0