Octopus
lapack_oct_m::lapack_sygv Interface Reference

Computes all the eigenvalues, and optionally, the eigenvectors of a real generalized symmetric-definite eigenproblem, of the form \(Ax=(\lambda)Bx, ABx=(\lambda)x, \mbox{ or } BAx=(\lambda)x \). Here A and B are assumed to be symmetric and B is also positive definite. More...

Detailed Description

Computes all the eigenvalues, and optionally, the eigenvectors of a real generalized symmetric-definite eigenproblem, of the form \(Ax=(\lambda)Bx, ABx=(\lambda)x, \mbox{ or } BAx=(\lambda)x \). Here A and B are assumed to be symmetric and B is also positive definite.

Definition at line 164 of file lapack.F90.

Public Member Functions

subroutine dsygv (itype, jobz, uplo, n, a, lda, b, ldb, w, work, lwork, info)
 

Member Function/Subroutine Documentation

◆ dsygv()

subroutine lapack_oct_m::lapack_sygv::dsygv ( integer, intent(in)  itype,
character(1), intent(in)  jobz,
character(1), intent(in)  uplo,
integer, intent(in)  n,
real(real64), intent(inout)  a,
integer, intent(in)  lda,
real(real64), intent(inout)  b,
integer, intent(in)  ldb,
real(real64), intent(out)  w,
real(real64), intent(out)  work,
integer, intent(in)  lwork,
integer, intent(out)  info 
)
Parameters
[in,out]ba(lda,n), b(ldb,n)
[out]workw(n), work(lwork)

Definition at line 165 of file lapack.F90.


The documentation for this interface was generated from the following file: