SRC/zpbtrs.f(3)            Library Functions Manual            SRC/zpbtrs.f(3)

NAME
       SRC/zpbtrs.f

SYNOPSIS
   Functions/Subroutines
       subroutine zpbtrs (uplo, n, kd, nrhs, ab, ldab, b, ldb, info)
           ZPBTRS

Function/Subroutine Documentation
   subroutine zpbtrs (character uplo, integer n, integer kd, integer nrhs,
       complex*16, dimension( ldab, * ) ab, integer ldab, complex*16,
       dimension( ldb, * ) b, integer ldb, integer info)
       ZPBTRS

       Purpose:


           !>
           !> ZPBTRS solves a system of linear equations A*X = B with a Hermitian
           !> positive definite band matrix A using the Cholesky factorization
           !> A = U**H *U or A = L*L**H computed by ZPBTRF.
           !>

       Parameters
           UPLO

           !>          UPLO is CHARACTER*1
           !>          = 'U':  Upper triangular factor stored in AB;
           !>          = 'L':  Lower triangular factor stored in AB.
           !>

           N

           !>          N is INTEGER
           !>          The order of the matrix A.  N >= 0.
           !>

           KD

           !>          KD is INTEGER
           !>          The number of superdiagonals of the matrix A if UPLO = 'U',
           !>          or the number of subdiagonals if UPLO = 'L'.  KD >= 0.
           !>

           NRHS

           !>          NRHS is INTEGER
           !>          The number of right hand sides, i.e., the number of columns
           !>          of the matrix B.  NRHS >= 0.
           !>

           AB

           !>          AB is COMPLEX*16 array, dimension (LDAB,N)
           !>          The triangular factor U or L from the Cholesky factorization
           !>          A = U**H *U or A = L*L**H of the band matrix A, stored in the
           !>          first KD+1 rows of the array.  The j-th column of U or L is
           !>          stored in the j-th column of the array AB as follows:
           !>          if UPLO ='U', AB(kd+1+i-j,j) = U(i,j) for max(1,j-kd)<=i<=j;
           !>          if UPLO ='L', AB(1+i-j,j)    = L(i,j) for j<=i<=min(n,j+kd).
           !>

           LDAB

           !>          LDAB is INTEGER
           !>          The leading dimension of the array AB.  LDAB >= KD+1.
           !>

           B

           !>          B is COMPLEX*16 array, dimension (LDB,NRHS)
           !>          On entry, the right hand side matrix B.
           !>          On exit, the solution matrix X.
           !>

           LDB

           !>          LDB is INTEGER
           !>          The leading dimension of the array B.  LDB >= max(1,N).
           !>

           INFO

           !>          INFO is INTEGER
           !>          = 0:  successful exit
           !>          < 0:  if INFO = -i, the i-th argument had an illegal value
           !>

       Author
           Univ. of Tennessee


           Univ. of California Berkeley


           Univ. of Colorado Denver


           NAG Ltd.

       Definition at line 120 of file zpbtrs.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0                 SRC/zpbtrs.f(3)