zpotrs.f man page

zpotrs.f

Synopsis

Functions/Subroutines

subroutine zpotrs (UPLO, N, NRHS, A, LDA, B, LDB, INFO)
ZPOTRS

Function/Subroutine Documentation

subroutine zpotrs (character UPLO, integer N, integer NRHS, complex*16, dimension( lda, * ) A, integer LDA, complex*16, dimension( ldb, * ) B, integer LDB, integer INFO)

ZPOTRS  

Purpose:

 ZPOTRS solves a system of linear equations A*X = B with a Hermitian
 positive definite matrix A using the Cholesky factorization
 A = U**H * U or A = L * L**H computed by ZPOTRF.
Parameters:

UPLO

          UPLO is CHARACTER*1
          = 'U':  Upper triangle of A is stored;
          = 'L':  Lower triangle of A is stored.

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*16 array, dimension (LDA,N)
          The triangular factor U or L from the Cholesky factorization
          A = U**H * U or A = L * L**H, as computed by ZPOTRF.

LDA

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

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.

Date:

December 2016

Definition at line 112 of file zpotrs.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

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

Tue Nov 14 2017 Version 3.8.0 LAPACK