go/src/math/floor.go

// Floor returns the greatest integer value less than or equal to x.
//
// Special cases are:
//
//	Floor(±0) = ±0
//	Floor(±Inf) = ±Inf
//	Floor(NaN) = NaN
func Floor(x float64) float64 { … }

func floor(x float64) float64 { … }

// Ceil returns the least integer value greater than or equal to x.
//
// Special cases are:
//
//	Ceil(±0) = ±0
//	Ceil(±Inf) = ±Inf
//	Ceil(NaN) = NaN
func Ceil(x float64) float64 { … }

func ceil(x float64) float64 { … }

// Trunc returns the integer value of x.
//
// Special cases are:
//
//	Trunc(±0) = ±0
//	Trunc(±Inf) = ±Inf
//	Trunc(NaN) = NaN
func Trunc(x float64) float64 { … }

func trunc(x float64) float64 { … }

// Round returns the nearest integer, rounding half away from zero.
//
// Special cases are:
//
//	Round(±0) = ±0
//	Round(±Inf) = ±Inf
//	Round(NaN) = NaN
func Round(x float64) float64 { … }

// RoundToEven returns the nearest integer, rounding ties to even.
//
// Special cases are:
//
//	RoundToEven(±0) = ±0
//	RoundToEven(±Inf) = ±Inf
//	RoundToEven(NaN) = NaN
func RoundToEven(x float64) float64 { … }