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F02 (Eigen)
Eigenvalues and Eigenvectors

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

Routine
Mark of
Introduction

Purpose
f02ecf 17 nagf_eigen_real_gen_eigsys
Selected eigenvalues and eigenvectors of real nonsymmetric matrix (Black Box)
f02ekf 24 nagf_eigen_real_gen_sparse_arnoldi
Selected eigenvalues and eigenvectors of a real sparse general matrix
f02fjf 11 nagf_eigen_real_symm_sparse_eigsys
Selected eigenvalues and eigenvectors of sparse symmetric eigenproblem (Black Box)
f02fkf 25 nagf_eigen_real_symm_sparse_arnoldi
Selected eigenvalues and eigenvectors of a real symmetric sparse matrix
f02gcf 17 nagf_eigen_complex_gen_eigsys
Selected eigenvalues and eigenvectors of complex nonsymmetric matrix (Black Box)
f02jcf 25 nagf_eigen_real_gen_quad
Solves the quadratic eigenvalue problem for real matrices
f02jqf 25 nagf_eigen_complex_gen_quad
Solves the quadratic eigenvalue problem for complex matrices
f02wgf 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
f02wuf 14 nagf_eigen_real_triang_svd
SVD of real upper triangular matrix (Black Box)
f02xuf 13 nagf_eigen_complex_triang_svd
SVD of complex upper triangular matrix (Black Box)