SRC/ztpttr.f(3)

NAME
SRC/ztpttr.f

SYNOPSIS

  Functions/Subroutines
subroutine ztpttr (uplo, n, ap, a, lda, info)
ZTPTTR copies a triangular matrix from the standard packed format (TP) to the standard full format (TR).

Function/Subroutine Documentation

  subroutine ztpttr (character uplo, integer n, complex*16, dimension( * ) ap, complex*16, dimension( lda, * ) a, integer lda, integer info)

ZTPTTR copies a triangular matrix from the standard packed format (TP) to the standard full format (TR).

Purpose:

    !>
    !> ZTPTTR copies a triangular matrix A from standard packed format (TP)
    !> to standard full format (TR).
    !>

Parameters
    UPLO

    !>          UPLO is CHARACTER*1
    !>          = 'U':  A is upper triangular.
    !>          = 'L':  A is lower triangular.
    !>

    N

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

    AP

    !>          AP is COMPLEX*16 array, dimension ( N*(N+1)/2 ),
    !>          On entry, the upper or lower triangular matrix A, packed
    !>          columnwise in a linear array. The j-th column of A is stored
    !>          in the array AP as follows:
    !>          if UPLO = 'U', AP(i + (j-1)*j/2) = A(i,j) for 1<=i<=j;
    !>          if UPLO = 'L', AP(i + (j-1)*(2n-j)/2) = A(i,j) for j<=i<=n.
    !>

    A

    !>          A is COMPLEX*16 array, dimension ( LDA, N )
    !>          On exit, the triangular matrix A.  If UPLO = 'U', the leading
    !>          N-by-N upper triangular part of A contains the upper
    !>          triangular part of the matrix A, and the strictly lower
    !>          triangular part of A is not referenced.  If UPLO = 'L', the
    !>          leading N-by-N lower triangular part of A contains the lower
    !>          triangular part of the matrix A, and the strictly upper
    !>          triangular part of A is not referenced.
    !>

    LDA

    !>          LDA is INTEGER
    !>          The leading dimension of the array A.  LDA >= 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 103 of file ztpttr.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.