Packages

Most of the standard library in Julia (can be found in /share/julia/base relative to where Julia was installed) is written in Julia itself. The rest of Julia's code ecosystem is contained in packages that are simply Git repositories. They are most often authored by external contributors, and already provide functionality for such diverse disciplines such as bioinformatics, chemistry, cosmology, finance, linguistics, machine learning, mathematics, statistics, and high-performance computing. A searchable package list can be found at http://pkg.julialang.org/. Official Julia packages are registered in the METADATA.jl file in the Julia Git repository, available on GitHub at https://github.com/JuliaLang/METADATA.jl.

Julia's installation contains a built-in package manager Pkg for installing additional Julia packages written in Julia. The downloaded packages are stored in a cache ready to be used by Julia given by Pkg.dir(), which are located at c:\users\username\.julia\vn.m...