go Log(),自然对数
Log()方法语法
func Log(x float64) float64
go源码对Log()方法的介绍:
Log returns the natural logarithm of x.
Special cases are:
Log(+Inf) = +Inf
Log(0) = -Inf
Log(x < 0) = NaN
Log(NaN) = NaN
golang math模块中的Log()方法,可求取以自然常数e为底的参数x的对数,除此之外,Log(+Inf) = +Inf;Log(0) = -Inf;Log(x < 0) = NaN;Log(NaN) = NaN。
math.Log()方法实例代码
实例中,math.E获取的是自然常数:
func main() {
log_v := math.Log(math.E)
fmt.Println(log_v)
}
运行go文件,得到输出:
1