3.0

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Eigen 3.0 was released on March 19, 2011.

Contents

Where to get it

See the Download section on the Main Page.

Some important changes between Eigen 2 and Eigen 3

Notice that from when we branched Eigen 2.0 to the 3.0.0 release, there have been 2845 changesets. By contrast, we've gone from scratch to 2.0.0 in just 834 changesets.

API changes between Eigen 2 and Eigen 3

This page details most API changes from Eigen 2 to Eigen 3. It should help you a lot with porting your application.

Notice in particular that, as explained in that page, by just defining EIGEN2_SUPPORT before including Eigen 3 headers, you can get much Eigen 2 code to compile with minimal changes against Eigen 3!

For large migrations, an even more powerful migration path is provided.

Documentation

Use the documentation of the current stable branch (3.1).

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