csytrs_aa_2stage.f

Section: LAPACK (3)
Updated: Tue Nov 14 2017
Page Index
 

NAME

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.


 

Index

NAME
SYNOPSIS
Functions/Subroutines
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)
Author
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