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{he,sy}gs2: reduction to standard form, level 2
LAPACK » Hermitian/symmetric eigenvalues » Generalized eig computational routines
Collaboration diagram for {he,sy}gs2: reduction to standard form, level 2:

## Functions

subroutine | chegs2 (itype, uplo, n, a, lda, b, ldb, info)
| CHEGS2 reduces a Hermitian definite generalized eigenproblem to standard form, using the factorization results obtained from cpotrf (unblocked algorithm).
subroutine | dsygs2 (itype, uplo, n, a, lda, b, ldb, info)
| DSYGS2 reduces a symmetric definite generalized eigenproblem to standard form, using the factorization results obtained from spotrf (unblocked algorithm).
subroutine | ssygs2 (itype, uplo, n, a, lda, b, ldb, info)
| SSYGS2 reduces a symmetric definite generalized eigenproblem to standard form, using the factorization results obtained from spotrf (unblocked algorithm).
subroutine | zhegs2 (itype, uplo, n, a, lda, b, ldb, info)
| ZHEGS2 reduces a Hermitian definite generalized eigenproblem to standard form, using the factorization results obtained from cpotrf (unblocked algorithm).

## Detailed Description