this addon is a basic calculator with just the 4 functions, i find myself using Window's calculator frequently and having to [alt-tab] out of wow to us it, so i made a short replica of the windows calculator...
to use this calculator type "/calc [number] [function] [number]" and it will give you the results
*note, you have to type the word of the function...
___EX. "/calc 1 + 1" wont do anything but "/calc 1 plus 1" will show "1 + 1 = 2"
*note, you have to type "divide" for the "divided by" function
if you type "/calc" then it will open a calculator window with clickable buttons
*includes power and root functions
"/calc 2 power 3" => 2 ^ 3 = 8
"/calc 8 root 3" => 3th root of 8 = 2