Unix/Linux Go Back    


CentOS 7.0 - man page for sorgl2 (centos section 3)

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


sorgl2.f(3)				      LAPACK				      sorgl2.f(3)

NAME
       sorgl2.f -

SYNOPSIS
   Functions/Subroutines
       subroutine sorgl2 (M, N, K, A, LDA, TAU, WORK, INFO)
	   SORGL2

Function/Subroutine Documentation
   subroutine sorgl2 (integerM, integerN, integerK, real, dimension( lda, * )A, integerLDA, real,
       dimension( * )TAU, real, dimension( * )WORK, integerINFO)
       SORGL2

       Purpose:

	    SORGL2 generates an m by n real matrix Q with orthonormal rows,
	    which is defined as the first m rows of a product of k elementary
	    reflectors of order n

		  Q  =	H(k) . . . H(2) H(1)

	    as returned by SGELQF.

       Parameters:
	   M

		     M is INTEGER
		     The number of rows of the matrix Q. M >= 0.

	   N

		     N is INTEGER
		     The number of columns of the matrix Q. N >= M.

	   K

		     K is INTEGER
		     The number of elementary reflectors whose product defines the
		     matrix Q. M >= K >= 0.

	   A

		     A is REAL array, dimension (LDA,N)
		     On entry, the i-th row must contain the vector which defines
		     the elementary reflector H(i), for i = 1,2,...,k, as returned
		     by SGELQF in the first k rows of its array argument A.
		     On exit, the m-by-n matrix Q.

	   LDA

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

	   TAU

		     TAU is REAL array, dimension (K)
		     TAU(i) must contain the scalar factor of the elementary
		     reflector H(i), as returned by SGELQF.

	   WORK

		     WORK is REAL array, dimension (M)

	   INFO

		     INFO is INTEGER
		     = 0: successful exit
		     < 0: if INFO = -i, the i-th argument has an illegal value

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Definition at line 114 of file sorgl2.f.

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

Version 3.4.2				 Tue Sep 25 2012			      sorgl2.f(3)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 01:17 PM.