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ztpttr.f(3) LAPACK ztpttr.f(3)

ztpttr.f -


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).

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.
Date:
September 2012
Definition at line 105 of file ztpttr.f.

Generated automatically by Doxygen for LAPACK from the source code.
Sat Nov 16 2013 Version 3.4.2

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