LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
{he,sy}td2: reduction to tridiagonal, level 2
Collaboration diagram for {he,sy}td2: reduction to tridiagonal, level 2:

Functions

subroutine chetd2 (UPLO, N, A, LDA, D, E, TAU, INFO)
 CHETD2 reduces a Hermitian matrix to real symmetric tridiagonal form by an unitary similarity transformation (unblocked algorithm). More...
 
subroutine dsytd2 (UPLO, N, A, LDA, D, E, TAU, INFO)
 DSYTD2 reduces a symmetric matrix to real symmetric tridiagonal form by an orthogonal similarity transformation (unblocked algorithm). More...
 
subroutine ssytd2 (UPLO, N, A, LDA, D, E, TAU, INFO)
 SSYTD2 reduces a symmetric matrix to real symmetric tridiagonal form by an orthogonal similarity transformation (unblocked algorithm). More...
 
subroutine zhetd2 (UPLO, N, A, LDA, D, E, TAU, INFO)
 ZHETD2 reduces a Hermitian matrix to real symmetric tridiagonal form by an unitary similarity transformation (unblocked algorithm). More...
 

Detailed Description