Intel® oneAPI Math Kernel Library Developer Reference - Fortran

Extended Eigensolver Predefined Interfaces

The predefined interfaces include routines for standard and generalized eigenvalue problems, and for dense, banded, and sparse matrices.

Matrix Type	Standard Eigenvalue Problem	Generalized Eigenvalue Problem
Dense	?feast_syev ?feast_heev	?feast_sygv ?feast_hegv
Banded	?feast_sbev ?feast_hbev	?feast_sbgv ?feast_hbgv
Sparse	?feast_scsrev ?feast_hcsrev	?feast_scsrgv ?feast_hcsrgv

Parent topic: Extended Eigensolver Interfaces for Eigenvalues within Interval

Matrix Storage
?feast_syev/?feast_heev
Extended Eigensolver interface for standard eigenvalue problem with dense matrices.
?feast_sygv/?feast_hegv
Extended Eigensolver interface for generalized eigenvalue problem with dense matrices.
?feast_sbev/?feast_hbev
Extended Eigensolver interface for standard eigenvalue problem with banded matrices.
?feast_sbgv/?feast_hbgv
Extended Eigensolver interface for generalized eigenvalue problem with banded matrices.
?feast_scsrev/?feast_hcsrev
Extended Eigensolver interface for standard eigenvalue problem with sparse matrices.
?feast_scsrgv/?feast_hcsrgv
Extended Eigensolver interface for generalized eigenvalue problem with sparse matrices.