csytrs_aa_2stage.f man page

csytrs_aa_2stage.f

Synopsis

Functions/Subroutines

subroutine csytrs_aa_2stage (UPLO, N, NRHS, A, LDA, TB, LTB, IPIV, IPIV2, B, LDB, INFO)
CSYTRS_AA_2STAGE

Function/Subroutine Documentation

subroutine csytrs_aa_2stage (character UPLO, integer N, integer NRHS, complex, dimension( lda, * ) A, integer LDA, complex, dimension( * ) TB, integer LTB, integer, dimension( * ) IPIV, integer, dimension( * ) IPIV2, complex, dimension( ldb, * ) B, integer LDB, integer INFO)

CSYTRS_AA_2STAGE  

Purpose:

 CSYTRS_AA_2STAGE solves a system of linear equations A*X = B with a complex
 symmetric matrix A using the factorization A = U*T*U**T or
 A = L*T*L**T computed by CSYTRF_AA_2STAGE.
Parameters:

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*T*U**T;
          = 'L':  Lower triangular, form is A = L*T*L**T.

N

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

NRHS

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

A

          A is COMPLEX array, dimension (LDA,N)
          Details of factors computed by CSYTRF_AA_2STAGE.

LDA

          LDA is INTEGER
          The leading dimension of the array A.  LDA >= max(1,N).

TB

          TB is COMPLEX array, dimension (LTB)
          Details of factors computed by CSYTRF_AA_2STAGE.

LTB

          The size of the array TB. LTB >= 4*N.

IPIV

          IPIV is INTEGER array, dimension (N)
          Details of the interchanges as computed by
          CSYTRF_AA_2STAGE.

IPIV2

          IPIV2 is INTEGER array, dimension (N)
          Details of the interchanges as computed by
          CSYTRF_AA_2STAGE.

B

          B is COMPLEX 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.

Date:

November 2017

Definition at line 140 of file csytrs_aa_2stage.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

The man page csytrs_aa_2stage(3) is an alias of csytrs_aa_2stage.f(3).

Tue Nov 14 2017 Version 3.8.0 LAPACK