.log()

The .log() function in Lua’s math library calculates the natural logarithmic value of a given number. The natural logarithm is to the base e, where e is Euler’s number, an irrational constant approximately equal to 2.71828.

Syntax

math.log(number)

• number: The number for which the natural logarithm is calculated.

Example

In this example, math.log() calculates the natural logarithmic value of 20:

local num = 20
local result = math.log(num)
local output = string.format("The natural Logarithm of %.0f: %.4f", num, result)
print(output)

The above example will result in the following output:

The natural Logarithm of 20: 2.9957