go/src/math/log.go

// Log returns the natural logarithm of x.
//
// Special cases are:
//
//	Log(+Inf) = +Inf
//	Log(0) = -Inf
//	Log(x < 0) = NaN
//	Log(NaN) = NaN
func Log(x float64) float64 { … }

func log(x float64) float64 { … }