Eigen (C++ library)

Open-source linear algebra library From Wikipedia, the free encyclopedia

Eigen is a high-level C++ library of template headers for linear algebra, matrix and vector operations, geometrical transformations, numerical solvers and related algorithms. Eigen is open-source software licensed under the Mozilla Public License 2.0 since version 3.1.1. Earlier versions were licensed under the GNU Lesser General Public License.[2] Version 1.0 was released in Dec 2006.[3]

Developers
  • Benoît Jacob
  • Gaël Guennebaud
Stable release
5.0.0[1] Edit this on Wikidata / 30 September 2025 (6 months ago) (30 September 2025)
Written inC++
Quick facts Developers, Stable release ...
Eigen
Developers
  • Benoît Jacob
  • Gaël Guennebaud
Stable release
5.0.0[1] Edit this on Wikidata / 30 September 2025 (6 months ago) (30 September 2025)
Written inC++
Operating systemCross-platform
TypeLibrary
LicenseMPL 2.0
Websitelibeigen.gitlab.io Edit this on Wikidata
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Eigen is implemented using the expression templates metaprogramming technique, meaning it builds expression trees at compile time and generates custom code to evaluate these. Using expression templates and a cost model of floating point operations, the library performs its own loop unrolling and vectorization.[4] Eigen itself can provide BLAS and a subset of LAPACK interfaces.[5]

See also

References

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