LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
 All Files Functions Typedefs Macros
zhptrs.f File Reference

Go to the source code of this file.

Functions/Subroutines

subroutine zhptrs (UPLO, N, NRHS, AP, IPIV, B, LDB, INFO)
 ZHPTRS More...
 

Function/Subroutine Documentation

subroutine zhptrs ( character  UPLO,
integer  N,
integer  NRHS,
complex*16, dimension( * )  AP,
integer, dimension( * )  IPIV,
complex*16, dimension( ldb, * )  B,
integer  LDB,
integer  INFO 
)

ZHPTRS

Download ZHPTRS + dependencies [TGZ] [ZIP] [TXT]

Purpose:
 ZHPTRS solves a system of linear equations A*X = B with a complex
 Hermitian matrix A stored in packed format using the factorization
 A = U*D*U**H or A = L*D*L**H computed by ZHPTRF.
Parameters
[in]UPLO
          UPLO is CHARACTER*1
          Specifies whether the details of the factorization are stored
          as an upper or lower triangular matrix.
          = 'U':  Upper triangular, form is A = U*D*U**H;
          = 'L':  Lower triangular, form is A = L*D*L**H.
[in]N
          N is INTEGER
          The order of the matrix A.  N >= 0.
[in]NRHS
          NRHS is INTEGER
          The number of right hand sides, i.e., the number of columns
          of the matrix B.  NRHS >= 0.
[in]AP
          AP is COMPLEX*16 array, dimension (N*(N+1)/2)
          The block diagonal matrix D and the multipliers used to
          obtain the factor U or L as computed by ZHPTRF, stored as a
          packed triangular matrix.
[in]IPIV
          IPIV is INTEGER array, dimension (N)
          Details of the interchanges and the block structure of D
          as determined by ZHPTRF.
[in,out]B
          B is COMPLEX*16 array, dimension (LDB,NRHS)
          On entry, the right hand side matrix B.
          On exit, the solution matrix X.
[in]LDB
          LDB is INTEGER
          The leading dimension of the array B.  LDB >= max(1,N).
[out]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.
Date
November 2011

Definition at line 116 of file zhptrs.f.

Here is the call graph for this function:

Here is the caller graph for this function: