AutoAbacus is a powerful equation solving library that finds solutions to equation sets with a snap. A set of equations can be passed in as text, while AutoAbacus attempts to find a solution that satisfies all constraints. The equations are not limited to be only linear, but can also be polynomial or include arbitrary functions. By profiling the types of equations in the system and their dependencies on each other, AutoAbacus uses appropriate solution methods to solve individual subsets of equations. Applications range from use in a sophisticated scripting languages, business rules engines and for solving engineering equation systems. AutoAbacus relies on Jep 2.24 to perform all the equation parsing. This means that all the built-in functions of Jep are supported by AutoAbacus as well. Furthermore, AutoAbacus is extendable through the addition of custom functions.