Algorithm2e is an environment for writing algorithms. An algorithm becomes a floating object (like figure, table, etc.). The package provides macros that allow you to create different keywords, and a set of predefined key words is provided; you can change the typography of the keywords. The package allows vertical lines delimiting block of instructions in an algorithm, and defines different sorts of algorithms such as Procedure or Function; the name of these functions may be reused in the text or in other algorithms.

The author is Christophe Fiorio.