ctpmv.f man page on DragonFly

Man page or keyword search:  
man Server   44335 pages
apropos Keyword Search (all sections)
Output format
DragonFly logo
[printable version]

ctpmv.f(3)			    LAPACK			    ctpmv.f(3)

NAME
       ctpmv.f -

SYNOPSIS
   Functions/Subroutines
       subroutine ctpmv (UPLO, TRANS, DIAG, N, AP, X, INCX)
	   CTPMV

Function/Subroutine Documentation
   subroutine ctpmv (characterUPLO, characterTRANS, characterDIAG, integerN,
       complex, dimension(*)AP, complex, dimension(*)X, integerINCX)
       CTPMV Purpose:

	    CTPMV  performs one of the matrix-vector operations

	       x := A*x,   or	x := A**T*x,   or   x := A**H*x,

	    where x is an n element vector and	A is an n by n unit, or non-unit,
	    upper or lower triangular matrix, supplied in packed form.

       Parameters:
	   UPLO

		     UPLO is CHARACTER*1
		      On entry, UPLO specifies whether the matrix is an upper or
		      lower triangular matrix as follows:

			 UPLO = 'U' or 'u'   A is an upper triangular matrix.

			 UPLO = 'L' or 'l'   A is a lower triangular matrix.

	   TRANS

		     TRANS is CHARACTER*1
		      On entry, TRANS specifies the operation to be performed as
		      follows:

			 TRANS = 'N' or 'n'   x := A*x.

			 TRANS = 'T' or 't'   x := A**T*x.

			 TRANS = 'C' or 'c'   x := A**H*x.

	   DIAG

		     DIAG is CHARACTER*1
		      On entry, DIAG specifies whether or not A is unit
		      triangular as follows:

			 DIAG = 'U' or 'u'   A is assumed to be unit triangular.

			 DIAG = 'N' or 'n'   A is not assumed to be unit
					     triangular.

	   N

		     N is INTEGER
		      On entry, N specifies the order of the matrix A.
		      N must be at least zero.

	   AP

		     AP is COMPLEX array of DIMENSION at least
		      ( ( n*( n + 1 ) )/2 ).
		      Before entry with	 UPLO = 'U' or 'u', the array AP must
		      contain the upper triangular matrix packed sequentially,
		      column by column, so that AP( 1 ) contains a( 1, 1 ),
		      AP( 2 ) and AP( 3 ) contain a( 1, 2 ) and a( 2, 2 )
		      respectively, and so on.
		      Before entry with UPLO = 'L' or 'l', the array AP must
		      contain the lower triangular matrix packed sequentially,
		      column by column, so that AP( 1 ) contains a( 1, 1 ),
		      AP( 2 ) and AP( 3 ) contain a( 2, 1 ) and a( 3, 1 )
		      respectively, and so on.
		      Note that when  DIAG = 'U' or 'u', the diagonal elements of
		      A are not referenced, but are assumed to be unity.

	   X

		     X is COMPLEX array of dimension at least
		      ( 1 + ( n - 1 )*abs( INCX ) ).
		      Before entry, the incremented array X must contain the n
		      element vector x. On exit, X is overwritten with the
		      tranformed vector x.

	   INCX

		     INCX is INTEGER
		      On entry, INCX specifies the increment for the elements of
		      X. INCX must not be zero.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Further Details:

	     Level 2 Blas routine.
	     The vector and matrix arguments are not referenced when N = 0, or M = 0

	     -- Written on 22-October-1986.
		Jack Dongarra, Argonne National Lab.
		Jeremy Du Croz, Nag Central Office.
		Sven Hammarling, Nag Central Office.
		Richard Hanson, Sandia National Labs.

       Definition at line 143 of file ctpmv.f.

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

Version 3.4.2			Sat Nov 16 2013			    ctpmv.f(3)
[top]

List of man pages available for DragonFly

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net