Library for Eigenvalues and Eigenvectors

This is a discussion on Library for Eigenvalues and Eigenvectors within the C Programming forums, part of the General Programming Boards category; Hi everyone, does anyone knows any library in c for calculating eigenvalues and eigenvectors of large, symmetric, sparse matrices? Specifically ...

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    Library for Eigenvalues and Eigenvectors

    Hi everyone,
    does anyone knows any library in c for calculating eigenvalues and eigenvectors of large, symmetric, sparse matrices?
    Specifically i want the second smallest eigenvalue and the eigenvector!
    Forgive me for my bad english!
    Thnx.

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    C++ Witch laserlight's Avatar
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    A quick search of the Web brings up GSL - GNU Scientific Library.
    C + C++ Compiler: MinGW port of GCC
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    Look up a C++ Reference and learn How To Ask Questions The Smart Way

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    Thanks! Any other suggestion?

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    Epy
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    There are beyond too many to name. A popular choice is LAPACK — Linear Algebra PACKage.

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    Technical Lead QuantumPete's Avatar
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    Quote Originally Posted by ioan1ioan View Post
    Thanks! Any other suggestion?
    Why don't you just Google this yourself?
    "No-one else has reported this problem, you're either crazy or a liar" - Dogbert Technical Support
    "Have you tried turning it off and on again?" - The IT Crowd

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    C++ Witch laserlight's Avatar
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    Quote Originally Posted by ioan1ioan
    Any other suggestion?
    You can try: C matrix library
    C + C++ Compiler: MinGW port of GCC
    Version Control System: Bazaar

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