Global Lua Modules/Calculator

Calculator is a global Lua module for doing simple calculations on wiki pages.
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The Calculator module provides several functions that can be called using {{#invoke}}:
; addition
: Adds two provided numbers
: Input: 
: Output: 
; subtraction
: Subtracts two provided numbers
: Input: 
: Output: 
; multiplication
: Multiplies two provided numbers
: Input: 
: Output: 
; division
: Divides two provided numbers
: Input: 
: Output: 
; modulo
: Finds the remainder of the division of two provided numbers
: Input: 
: Output: 
; exponentation
: Raises first number to the power of second one and returns the result
: Input: 
: Output: