Unix/Linux Go Back    


CentOS 7.0 - man page for ctrti2.f (centos section 3)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


ctrti2.f(3)				      LAPACK				      ctrti2.f(3)

NAME
       ctrti2.f -

SYNOPSIS
   Functions/Subroutines
       subroutine ctrti2 (UPLO, DIAG, N, A, LDA, INFO)
	   CTRTI2 computes the inverse of a triangular matrix (unblocked algorithm).

Function/Subroutine Documentation
   subroutine ctrti2 (characterUPLO, characterDIAG, integerN, complex, dimension( lda, * )A,
       integerLDA, integerINFO)
       CTRTI2 computes the inverse of a triangular matrix (unblocked algorithm).

       Purpose:

	    CTRTI2 computes the inverse of a complex upper or lower triangular
	    matrix.

	    This is the Level 2 BLAS version of the algorithm.

       Parameters:
	   UPLO

		     UPLO is CHARACTER*1
		     Specifies whether the matrix A is upper or lower triangular.
		     = 'U':  Upper triangular
		     = 'L':  Lower triangular

	   DIAG

		     DIAG is CHARACTER*1
		     Specifies whether or not the matrix A is unit triangular.
		     = 'N':  Non-unit triangular
		     = 'U':  Unit triangular

	   N

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

	   A

		     A is COMPLEX 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

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

	   INFO

		     INFO is INTEGER
		     = 0: successful exit
		     < 0: if INFO = -k, the k-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 111 of file ctrti2.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.2				 Tue Sep 25 2012			      ctrti2.f(3)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 09:43 AM.