const math.pp4

3 uses

	math (current package)
		erf.go#L128: 	pp4  = -2.37630166566501626084e-05 // 0xBEF8EAD6120016AC
		erf.go#L224: 			r := pp0 + z*(pp1+z*(pp2+z*(pp3+z*pp4)))
		erf.go#L301: 			r := pp0 + z*(pp1+z*(pp2+z*(pp3+z*pp4)))