Operators and Expressions

Lua provides standard arithmetic, comparison, logical, and string operators.

Arithmetic Operators:

+  -- addition
-  -- subtraction
*  -- multiplication
/  -- division
^  -- exponentiation
%  -- modulus

Example:

a = 10
b = 3

print(a + b)   -- 13
print(a ^ b)   -- 1000 (10 to the power of 3)

Relational Operators:

==   -- equal
~=   -- not equal
>    -- greater than
<    -- less than
>=   -- greater than or equal
<=   -- less than or equal

Logical Operators:

and  or  not

String Concatenation:

Use .. to concatenate strings:

greeting = "Hello" .. " " .. "World"
print(greeting)  -- Hello World