gbtf2: triangular factor, level 2

Collaboration diagram for gbtf2: triangular factor, level 2:

Functions
subroutine	cgbtf2 (m, n, kl, ku, ab, ldab, ipiv, info)
	CGBTF2 computes the LU factorization of a general band matrix using the unblocked version of the algorithm.
subroutine	dgbtf2 (m, n, kl, ku, ab, ldab, ipiv, info)
	DGBTF2 computes the LU factorization of a general band matrix using the unblocked version of the algorithm.
subroutine	sgbtf2 (m, n, kl, ku, ab, ldab, ipiv, info)
	SGBTF2 computes the LU factorization of a general band matrix using the unblocked version of the algorithm.
subroutine	zgbtf2 (m, n, kl, ku, ab, ldab, ipiv, info)
	ZGBTF2 computes the LU factorization of a general band matrix using the unblocked version of the algorithm.

Detailed Description