const haveArchFloor … func archFloor(x float64) float64 const haveArchCeil … func archCeil(x float64) float64 const haveArchTrunc … func archTrunc(x float64) float64
const haveArchFloor … func archFloor(x float64) float64 const haveArchCeil … func archCeil(x float64) float64 const haveArchTrunc … func archTrunc(x float64) float64