func Approx(x, y float64) bool {
	eps := epsilon64 * 100
	return math.Abs(x-y) < eps*(1.0+math.Max(math.Abs(x), math.Abs(y)))
}
func Approx(x, y float64) bool {
	eps := epsilon64 * 100
	return math.Abs(x-y) < eps*(1.0+math.Max(math.Abs(x), math.Abs(y)))
}
func Approx ( x , y float64 ) bool { eps := epsilon64 * 100 return math . Abs ( x - y ) < eps * ( 1.0 + math . Max ( math . Abs ( x ) , math . Abs ( y ) ) ) }
// Approx returns true if x ~= y
Approx returns true if x ~ = y