rad()

The rad() function in Lua’s math library converts a number given in degrees to its equivalent in radians.

Syntax

math.rad(degree)

• degree: The number in degrees.

Example

In this example, math.rad() converts 180 degrees to radians.

local x = 180
local answer = math.rad(x)

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

This will result in the following output below.

180 in radians is 3.1416