abs()

The abs() function in Lua’s math library returns the absolute value of a given number.

Syntax

math.abs(number)

• number: The number to be addressed.

Example

This example demonstrates a basic implementation of math.abs().

local x = -5
local answer = math.abs(x)

local output = string.format("Absolute value %.0f is %.4f", x, answer)
print(output)

This will result in the following output below.

Absolute value -5 is 5.0000