tan()

In Lua, the math.tan() function is a standard mathematical function that is part of the Lua math library. It is used to calculate the tangent of a given angle.

Note: math.tan() expects the input angle value to be in radians. If an angle’s value is in degrees, it can be converted into radians using the math.pi constant in Lua and the following formula: radians = degrees * (math.pi / 180)

Syntax

math.tan(myangle)

Example

To find the tangent of an angle in degrees, first convert it into radians, and then pass the value to the math.tan() function, or simply pass in the radian value:

local angle = 45 * ( math.pi / 180 )
print(math.tan(angle))

print(math.tan(math.pi / 6))

This results in the following output:

1.0
0.57735026918963