Main Page

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The main window of the PyGTK GUI for ASCEND. There are more screenshots.

ASCEND is a free open-source software program for solving small to very large mathematical models. ASCEND can solve systems of non-linear equations, linear and nonlinear optimisation problems, and dynamic systems expressed in the form of differential/algebraic equations.

There is an ASCEND Overview with more information about ASCEND capabilities. Alternatively, you can look at some screenshots or some example problems solved using ASCEND.

Current version 0.9.7: Download (Windows, Linux, Mac)
Please read the Installation notes!

News flash: ASCEND is hoping to participate in GSOC2011. Please read about our student projects and not that we will be strongly prioritising towards those applicants who have made useful contributions before the selection deadline. (more news)

In this wiki...

• some new user's documentation (in progress)
• some information on the various ASCEND solvers.
• the Worked examples and the ModelLibrary for some examples of what you can do with ASCEND.
• information on Building ASCEND from the source code
• information about extending ASCEND using external libraries.
• read about current Development activities.
• the Developer's Manual in progress.
• about our current GSOC2010 participation.
• some ideas for Student Projects working on ASCEND.
• please report a bug if you find one.

This wiki is open to contributions from anyone. All we ask is that you register with your email address. Note that there is some earlier content from our previous website gradually being migrated to this wiki.

Get the source code

Source code (as well as binary) releases are available from our download page on SourceForge.

Open access to our subversion repository is available, or you can browse our code online.

Send us your ASCEND models

We are working on expanding our ASCEND Model Library. If you have used ASCEND to solve a relatively common problem, your model will probably be of use to other users. Please contact Art Westerberg or one of the other developers if you are interested in sharing any models that you might have developed.