NAG Library Chapter Contents

F02 (eigen)
Eigenvalues and Eigenvectors


F02 (eigen) Chapter Introduction – a description of the Chapter and an overview of the algorithms available

Routine
Name
Mark of
Introduction

Purpose
f02ecf
Example Text
Example Data
17 nagf_eigen_real_gen_eigsys
Selected eigenvalues and eigenvectors of real nonsymmetric matrix (Black Box)
f02ekf
Example Text
Example Data
24 nagf_eigen_real_gen_sparse_arnoldi
Selected eigenvalues and eigenvectors of a real sparse general matrix
f02fjf
Example Text
Example Data
11 nagf_eigen_real_symm_sparse_eigsys
Selected eigenvalues and eigenvectors of sparse symmetric eigenproblem (Black Box)
f02fkf
Example Text
Example Data
25 nagf_eigen_real_symm_sparse_arnoldi
Selected eigenvalues and eigenvectors of a real symmetric sparse matrix
f02gcf
Example Text
Example Data
17 nagf_eigen_complex_gen_eigsys
Selected eigenvalues and eigenvectors of complex nonsymmetric matrix (Black Box)
f02jcf
Example Text
Example Data
25 nagf_eigen_real_gen_quad
Solves the quadratic eigenvalue problem for real matrices
f02jqf
Example Text
Example Data
25 nagf_eigen_complex_gen_quad
Solves the quadratic eigenvalue problem for complex matrices
f02sdf
Example Text
Example Data
8 nagf_eigen_withdraw_real_band_geneig
Eigenvector of generalized real banded eigenproblem by inverse iteration
Note: this routine is scheduled for withdrawal at Mark 27, see Advice on Replacement Calls for Withdrawn/Superseded Routines for further information.
f02wdf
Example Text
Example Data
8 nagf_eigen_withdraw_real_gen_qu_svd
Returns the Householder factorization of a real rectangular m by n matrix. Part or all of the singular value decomposition may also be returned
Note: this routine is scheduled for withdrawal at Mark 27, see Advice on Replacement Calls for Withdrawn/Superseded Routines for further information.
f02wgf
Example Text
Example Data
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
Example Text
Example Data
14 nagf_eigen_real_triang_svd
SVD of real upper triangular matrix (Black Box)
f02xuf
Example Text
Example Data
13 nagf_eigen_complex_triang_svd
SVD of complex upper triangular matrix (Black Box)
© The Numerical Algorithms Group Ltd, Oxford, UK. 2017