Source: dim.go in package math

Source File
	dim.go

Belonging Package
	math


package math

Dim returns the maximum of x-y or 0. Special cases are: Dim(+Inf, +Inf) = NaN Dim(-Inf, -Inf) = NaN Dim(x, NaN) = Dim(NaN, x) = NaN

The special cases result in NaN after the subtraction: +Inf - +Inf = NaN -Inf - -Inf = NaN NaN - y = NaN x - NaN = NaN

	v := x - y

v is negative or 0

		return 0

v is positive or NaN

	return v
}

Max returns the larger of x or y. Special cases are: Max(x, +Inf) = Max(+Inf, x) = +Inf Max(x, NaN) = Max(NaN, x) = NaN Max(+0, ±0) = Max(±0, +0) = +0 Max(-0, -0) = -0

func Max(x, y float64) float64

special cases

	switch {
	case IsInf(x, 1) || IsInf(y, 1):
		return Inf(1)
	case IsNaN(x) || IsNaN(y):
		return NaN()
	case x == 0 && x == y:
		if Signbit(x) {
			return y
		}
		return x
	}
	if x > y {
		return x
	}
	return y
}

Min returns the smaller of x or y. Special cases are: Min(x, -Inf) = Min(-Inf, x) = -Inf Min(x, NaN) = Min(NaN, x) = NaN Min(-0, ±0) = Min(±0, -0) = -0

func Min(x, y float64) float64

special cases

	switch {
	case IsInf(x, -1) || IsInf(y, -1):
		return Inf(-1)
	case IsNaN(x) || IsNaN(y):
		return NaN()
	case x == 0 && x == y:
		if Signbit(x) {
			return x
		}
		return y
	}
	if x < y {
		return x
	}
	return y


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