The luacomplex package is developed to define complex numbers and perform basic arithmetic on complex numbers in LaTeX. It also loads the luamathspackage. It provides an easy way to define complex numbers and perform operations on complex numbers. There is no particular environment for performing operations on complex numbers. The package commands can be used in any environment (including the mathematics environment). It is written in Lua, and the .tex file is to be compiled with the LuaLaTeX engine.