func math.Frexp

7 uses

	math (current package)
		frexp.go#L16: func Frexp(f float64) (frac float64, exp int)
		log.go#L106: 	f1, ki := Frexp(x)
		log10.go#L20: 	frac, exp := Frexp(x)
		mod.go#L29: 	yfr, yexp := Frexp(y)
		mod.go#L36: 		rfr, rexp := Frexp(r)
		pow.go#L120: 	x1, xe := Frexp(x)

	math/big
		float.go#L563: 	fmant, exp := math.Frexp(x) // get normalized mantissa