NAG FL Interface
F02 (Eigen)
Eigenvalues and Eigenvectors

F02 (Eigen) Chapter Introduction – A description of the Chapter and an overview of the algorithms available.

Routine
Mark of
Introduction

Purpose
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17 nagf_eigen_real_gen_eigsys
Selected eigenvalues and eigenvectors of real nonsymmetric matrix (Black Box)
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24 nagf_eigen_real_gen_sparse_arnoldi
Selected eigenvalues and eigenvectors of a real sparse general matrix
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11 nagf_eigen_real_symm_sparse_eigsys
Selected eigenvalues and eigenvectors of sparse symmetric eigenproblem (Black Box)
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25 nagf_eigen_real_symm_sparse_arnoldi
Selected eigenvalues and eigenvectors of a real symmetric sparse matrix
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17 nagf_eigen_complex_gen_eigsys
Selected eigenvalues and eigenvectors of complex nonsymmetric matrix (Black Box)
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25 nagf_eigen_real_gen_quad
Solves the quadratic eigenvalue problem for real matrices
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25 nagf_eigen_complex_gen_quad
Solves the quadratic eigenvalue problem for complex matrices
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22 nagf_eigen_real_gen_partialsvd
Computes leading terms in the singular value decomposition of a real general matrix; also computes corresponding left and right singular vectors
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14 nagf_eigen_real_triang_svd
SVD of real upper triangular matrix (Black Box)
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13 nagf_eigen_complex_triang_svd
SVD of complex upper triangular matrix (Black Box)