{he,sy}tf2: triangular factor, level 2

Functions
subroutine	chetf2 (uplo, n, a, lda, ipiv, info)
	CHETF2 computes the factorization of a complex Hermitian matrix, using the diagonal pivoting method (unblocked algorithm calling Level 2 BLAS).
subroutine	csytf2 (uplo, n, a, lda, ipiv, info)
	CSYTF2 computes the factorization of a real symmetric indefinite matrix, using the diagonal pivoting method (unblocked algorithm).
subroutine	dsytf2 (uplo, n, a, lda, ipiv, info)
	DSYTF2 computes the factorization of a real symmetric indefinite matrix, using the diagonal pivoting method (unblocked algorithm).
subroutine	ssytf2 (uplo, n, a, lda, ipiv, info)
	SSYTF2 computes the factorization of a real symmetric indefinite matrix, using the diagonal pivoting method (unblocked algorithm).
subroutine	zhetf2 (uplo, n, a, lda, ipiv, info)
	ZHETF2 computes the factorization of a complex Hermitian matrix, using the diagonal pivoting method (unblocked algorithm, calling Level 2 BLAS).
subroutine	zsytf2 (uplo, n, a, lda, ipiv, info)
	ZSYTF2 computes the factorization of a real symmetric indefinite matrix, using the diagonal pivoting method (unblocked algorithm).

Detailed Description