Comparison of linear algebra libraries


The following tables provide a comparison of linear algebra software libraries, either specialized or general purpose libraries with significant linear algebra coverage.

Dense linear algebra

General information

Creator Language First public release Latest stable version Source code availability License Notes
ALGLIB[1] ALGLIB Project C++, C#, FreePascal, VBA 2006 3.12.0 / 08.2017 Free GPL/commercial General purpose numerical analysis library with C++ and C# interfaces.
Armadillo[2][3] NICTA C++ 2009 9.200 / 10.2018 Free Apache License 2.0 C++ template library for linear algebra; includes various decompositions and factorisations; syntax (API) is similar to MATLAB.
ATLAS R. Clint Whaley et al. C 2001 3.10.3 / 07.2016 Free BSD Automatically tuned implementation of BLAS. Also includes LU and Cholesky decompositions.
Blaze[4] K. Iglberger et al. C++ 2012 3.8 / 08.2020 Free BSD Blaze is an open-source, high-performance C++ math library for dense and sparse arithmetic.
Blitz++ Todd Veldhuizen C++ ? 1.0.2 / 10.2019 Free GPL Blitz++ is a C++ template class library that provides high-performance multidimensional array containers for scientific computing.
Boost uBLAS J. Walter, M. Koch C++ 2000 1.70.0 / 04.2019 Free Boost Software License uBLAS is a C++ template class library that provides BLAS level 1, 2, 3 functionality for dense, packed and sparse matrices.
Dlib Davis E. King C++ 2006 19.7 / 09/2017 Free Boost C++ template library; binds to optimized BLAS such as the Intel MKL; Includes matrix decompositions, non-linear solvers, and machine learning tooling
Eigen Benoît Jacob C++ 2008 3.3.9 / 12.2020 Free MPL2 Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms.
Fastor[5] R. Poya, A. J. Gil and R. Ortigosa C++ 2016 0.6.3 / 06.2020 Free MIT License Fastor is a high performance tensor (fixed multi-dimensional array) library for modern C++.
GNU Scientific Library[6] GNU Project C, C++ 1996 2.5 / 06.2018 Free GPL General purpose numerical analysis library. Includes some support for linear algebra.
IMSL Numerical Libraries Rogue Wave Software C, Java, C#, Fortran, Python 1970 many components Non-free Proprietary General purpose numerical analysis library.
LAPACK[7][8] Fortran 1992 3.9.0 / 11.2019 Free 3-clause BSD Numerical linear algebra library with long history
librsb Michele Martone C, Fortran, M4 2011 1.2 / September 2016 Free GPL High-performance multi-threaded primitives for large sparse matrices. Support operations for iterative solvers: multiplication, triangular solve, scaling, matrix I/O, matrix rendering. Many variants: e.g.: symmetric, hermitian, complex, quadruple precision.
oneMKL Intel C++, Fortran 2003 2021.4 update 1 / 01.2021 Non-free Intel Simplified Software License Numerical analysis library optimized for Intel CPUs
Math.NET Numerics C. Rüegg, M. Cuda, et al. C# 2009 3.20 / 07.2017 Free MIT License C# numerical analysis library with linear algebra support
Matrix Template Library Jeremy Siek, Peter Gottschling, Andrew Lumsdaine, et al C++ 1998 4.0 / 2018 Free Boost Software License High-performance C++ linear algebra library based on Generic programming
NAG Numerical Library The Numerical Algorithms Group C, Fortran 1971 many components Non-free Proprietary General purpose numerical analysis library.
NMath CenterSpace Software C# 2003 7.1 / December 2019 Non-free Proprietary Math and statistical libraries for the .NET Framework
SciPy[9][10][11] Enthought Python 2001 1.0.0 / 10.2017 Free BSD Based on Python
Xtensor[12] S. Corlay, W. Vollprecht, J. Mabille et al. C++ 2016 0.21.10 / 11.2020 Free 3-clause BSD Xtensor is a C++ library meant for numerical analysis with multi-dimensional array expressions, broadcasting and lazy computing.

Matrix types and operations

Matrix types (special types like bidiagonal/tridiagonal are not listed):

  • Real – general (nonsymmetric) real
  • Complex – general (nonsymmetric) complex
  • SPD – symmetric positive definite (real)
  • HPD – Hermitian positive definite (complex)
  • SY – symmetric (real)
  • HE – Hermitian (complex)
  • BND – band


  • TF – triangular factorizations (LU, Cholesky)
  • OF – orthogonal factorizations (QR, QL, generalized factorizations)
  • EVP – eigenvalue problems
  • SVDsingular value decomposition
  • GEVP – generalized EVP
  • GSVDgeneralized SVD
ALGLIB Yes Yes Yes Yes No No No Yes Yes Yes Yes Yes No
ATLAS Yes Yes Yes Yes No No No Yes No No No No No
Dlib Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes No No
GNU Scientific Library Yes Yes Yes Yes No No No Yes Yes Yes Yes Yes No
ILNumerics.Net Yes Yes Yes Yes No No No Yes Yes Yes Yes No No
IMSL Numerical Libraries Yes Yes Yes Yes No No Yes Yes No Yes Yes Yes No
LAPACK Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
MKL Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
NAG Numerical Library Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
NMath Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No
SciPy (Python packages) Yes Yes Yes Yes No No No Yes Yes Yes Yes No No
Eigen Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No
Armadillo Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes No


  1. ^ Bochkanov, S., & Bystritsky, V. (2011). ALGLIB-a cross-platform numerical analysis and data processing library. ALGLIB Project. Novgorod, Russia.
  2. ^ Sanderson, C., & Curtin, R. (2016). Armadillo: a template-based C++ library for linear algebra. Journal of Open Source Software, 1(2), 26.
  3. ^ Sanderson, C. (2010). Armadillo: An open source C++ linear algebra library for fast prototyping and computationally intensive experiments (p. 84). Technical report, NICTA.
  4. ^
  5. ^ Poya, Roman and Gil, Antonio J. and Ortigosa, Rogelio (2017). "A high performance data parallel tensor contraction framework: Application to coupled electro-mechanics". Computer Physics Communications. 216: 35–52. Bibcode:2017CoPhC.216...35P. doi:10.1016/j.cpc.2017.02.016.CS1 maint: multiple names: authors list (link)
  6. ^ Gough, B. (2009). GNU scientific library reference manual. Network Theory Ltd..
  7. ^ Anderson, E., Bai, Z., Bischof, C., Blackford, S., Dongarra, J., Du Croz, J., ... & Sorensen, D. (1999). LAPACK Users' guide. SIAM.
  8. ^ Anderson, E., Bai, Z., Dongarra, J., Greenbaum, A., McKenney, A., Du Croz, J., ... & Sorensen, D. (1990, November). LAPACK: A portable linear algebra library for high-performance computers. In Proceedings of the 1990 ACM/IEEE conference on Supercomputing (pp. 2–11). IEEE Computer Society Press.
  9. ^ Jones, E., Oliphant, T., & Peterson, P. (2001). SciPy: Open source scientific tools for Python.
  10. ^ Bressert, E. (2012). SciPy and NumPy: an overview for developers. " O'Reilly Media, Inc.".
  11. ^ Blanco-Silva, F. J. (2013). Learning SciPy for numerical and scientific computing. Packt Publishing Ltd.
  12. ^

External links