Description
BasicCalculator – TBC Anniversary Edition is a fork of BasicCalculator by Matt Kaufman, updated for compatibility with WoW The Burning Crusade Anniversary (2.5.5).
A simple in-game calculator accessible with /calc. Supports basic arithmetic, exponents, square roots, trigonometric functions (sin, cos, tan, asin, acos, atan), and natural logarithm. Input via on-screen buttons or numpad keys.
Commands:
/calc — Toggle the calculator
/calc showhistory / /calc hidehistory — Show or hide calculation results in chat
/calc lock / /calc unlock — Lock or unlock the frame position
/calc help — Show all commands
(Original : https://www.curseforge.com/wow/addons/basic-calculator)


