--- title: math.log() function description: The math.log() function returns the natural logarithm of `x`. menu: v2_0_ref: name: math.log parent: Math weight: 301 --- The `math.log()` function returns the natural logarithm of `x`. _**Output data type:** Float_ ```js import "math" math.log(x: 3.14) // Returns 1.144222799920162 ``` ## Parameters ### x The value used in the operation. _**Data type:** Float_ ## Special cases ```js math.log(x: +Inf) // Returns +Inf math.log(x: 0) // Returns -Inf math.log(x: <0) // Returns NaN math.log(x: NaN) // Returns NaN ```