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-version 1.7, 2010/12/21 13:53:57
+version 1.8, 2011/11/21 20:43:23
  Line 1
+ *> \brief \b ZTRTI2
+ *
+ *  =========== DOCUMENTATION ===========
+ *
+ * Online html documentation available at
+ *            http://www.netlib.org/lapack/explore-html/
+ *
+ *> \htmlonly
+ *> Download ZTRTI2 + dependencies
+ *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/ztrti2.f">
+ *> [TGZ]</a>
+ *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/ztrti2.f">
+ *> [ZIP]</a>
+ *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/ztrti2.f">
+ *> [TXT]</a>
+ *> \endhtmlonly
+ *
+ *  Definition:
+ *  ===========
+ *
+ *       SUBROUTINE ZTRTI2( UPLO, DIAG, N, A, LDA, INFO )
+ *
+ *       .. Scalar Arguments ..
+ *       CHARACTER          DIAG, UPLO
+ *       INTEGER            INFO, LDA, N
+ *       ..
+ *       .. Array Arguments ..
+ *       COMPLEX*16         A( LDA, * )
+ *       ..
+ *
+ *
+ *> \par Purpose:
+ *  =============
+ *>
+ *> \verbatim
+ *>
+ *> ZTRTI2 computes the inverse of a complex upper or lower triangular
+ *> matrix.
+ *>
+ *> This is the Level 2 BLAS version of the algorithm.
+ *> \endverbatim
+ *
+ *  Arguments:
+ *  ==========
+ *
+ *> \param[in] UPLO
+ *> \verbatim
+ *>          UPLO is CHARACTER*1
+ *>          Specifies whether the matrix A is upper or lower triangular.
+ *>          = 'U':  Upper triangular
+ *>          = 'L':  Lower triangular
+ *> \endverbatim
+ *>
+ *> \param[in] DIAG
+ *> \verbatim
+ *>          DIAG is CHARACTER*1
+ *>          Specifies whether or not the matrix A is unit triangular.
+ *>          = 'N':  Non-unit triangular
+ *>          = 'U':  Unit triangular
+ *> \endverbatim
+ *>
+ *> \param[in] N
+ *> \verbatim
+ *>          N is INTEGER
+ *>          The order of the matrix A.  N >= 0.
+ *> \endverbatim
+ *>
+ *> \param[in,out] A
+ *> \verbatim
+ *>          A is COMPLEX*16 array, dimension (LDA,N)
+ *>          On entry, the triangular matrix A.  If UPLO = 'U', the
+ *>          leading n by n upper triangular part of the array A contains
+ *>          the upper triangular matrix, and the strictly lower
+ *>          triangular part of A is not referenced.  If UPLO = 'L', the
+ *>          leading n by n lower triangular part of the array A contains
+ *>          the lower triangular matrix, and the strictly upper
+ *>          triangular part of A is not referenced.  If DIAG = 'U', the
+ *>          diagonal elements of A are also not referenced and are
+ *>          assumed to be 1.
+ *>
+ *>          On exit, the (triangular) inverse of the original matrix, in
+ *>          the same storage format.
+ *> \endverbatim
+ *>
+ *> \param[in] LDA
+ *> \verbatim
+ *>          LDA is INTEGER
+ *>          The leading dimension of the array A.  LDA >= max(1,N).
+ *> \endverbatim
+ *>
+ *> \param[out] INFO
+ *> \verbatim
+ *>          INFO is INTEGER
+ *>          = 0: successful exit
+ *>          < 0: if INFO = -k, the k-th argument had an illegal value
+ *> \endverbatim
+ *
+ *  Authors:
+ *  ========
+ *
+ *> \author Univ. of Tennessee
+ *> \author Univ. of California Berkeley
+ *> \author Univ. of Colorado Denver
+ *> \author NAG Ltd.
+ *
+ *> \date November 2011
+ *
+ *> \ingroup complex16OTHERcomputational
+ *
+ *  =====================================================================
        SUBROUTINE ZTRTI2( UPLO, DIAG, N, A, LDA, INFO )
  *
- *  -- LAPACK routine (version 3.2) --
+ *  -- LAPACK computational routine (version 3.4.0) --
  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
- *     November 2006
+ *     November 2011
  *
  *     .. Scalar Arguments ..
        CHARACTER          DIAG, UPLO
- Line 13
+ Line 123
        COMPLEX*16         A( LDA, * )
  *     ..
  *
- *  Purpose
- *  =======
- *
- *  ZTRTI2 computes the inverse of a complex upper or lower triangular
- *  matrix.
- *
- *  This is the Level 2 BLAS version of the algorithm.
- *
- *  Arguments
- *  =========
- *
- *  UPLO    (input) CHARACTER*1
- *          Specifies whether the matrix A is upper or lower triangular.
- *          = 'U':  Upper triangular
- *          = 'L':  Lower triangular
- *
- *  DIAG    (input) CHARACTER*1
- *          Specifies whether or not the matrix A is unit triangular.
- *          = 'N':  Non-unit triangular
- *          = 'U':  Unit triangular
- *
- *  N       (input) INTEGER
- *          The order of the matrix A.  N >= 0.
- *
- *  A       (input/output) COMPLEX*16 array, dimension (LDA,N)
- *          On entry, the triangular matrix A.  If UPLO = 'U', the
- *          leading n by n upper triangular part of the array A contains
- *          the upper triangular matrix, and the strictly lower
- *          triangular part of A is not referenced.  If UPLO = 'L', the
- *          leading n by n lower triangular part of the array A contains
- *          the lower triangular matrix, and the strictly upper
- *          triangular part of A is not referenced.  If DIAG = 'U', the
- *          diagonal elements of A are also not referenced and are
- *          assumed to be 1.
- *
- *          On exit, the (triangular) inverse of the original matrix, in
- *          the same storage format.
- *
- *  LDA     (input) INTEGER
- *          The leading dimension of the array A.  LDA >= max(1,N).
- *
- *  INFO    (output) INTEGER
- *          = 0: successful exit
- *          < 0: if INFO = -k, the k-th argument had an illegal value
- *
  *  =====================================================================
  *
  *     .. Parameters ..

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