What's new

New Jep releases planned | Dec. 2, 2015
A new release of Jep is close. A major feature will be internalisation support. There will also be an extension package with support for matrices, very fast evaluation using doubles, differentiation and symbolic manipulation and an enhanced type system. structured programming with for and while loops

New Jep releases | Nov. 22, 2010
The last few months have seen two new releases of Jep Java (now at 3.4) and Jep.Net (now at 1.1). Check out the product pages for more details on the changes.

Product Updates Coming | Jun. 4, 2010
Jep Java, Jep.Net and AutoAbacus will all see new releases soon! Keep checking back here or be notified by email.

Jep.Net 1.0 Release | Jun. 15, 2009
We are proud to announce the release of Jep.Net v1.0! This is a careful, hand-crafted port of the 3.2 version of Jep to the .Net framework. This product represents a perfect meld of .Net innovations and years of development and refinement of the original Jep parser and evaluator.

For more information and a trial download visit the Jep.Net page.

Jep 3.3 Release | Nov. 30, 2008
The newest Jep release of is now available for download! We have drastically improved evaluation speeds for real-number calculations, added additional functions and enhanced the operator table functionality.

Jep Java

Java Math Expression Parser

Jep Java is a library for parsing and evaluating mathematical expressions. With this API you can allow your users to enter an arbitrary formula as a string, and instantly evaluate it.

With over 500 downloads per month, the number of Jep users is rapidly growing. Have a look at the Jep example applets as well as AutoAbacus, to see Jep in action!

Jep.Net

Math Expression Parser for .Net

Just like Jep Java, Jep.Net is a library for parsing and evaluating mathematical expressions except as a .Net component.

Be sure to check out the trial version which includes a number of excellent demonstrations of how this library could be put to use in your next project. You will be impressed with the extendible architecture, ease-of-use, and speed of Jep.Net.

AutoAbacus

Equation solving library

AutoAbacus is a powerful equation solving library that finds solutions to equation sets with a snap. Equations are passed to AutoAbacus as text, while the program attempts to find a solution that satisfies all constraints.