Home Man
Search
Today's Posts
Register

Linux & Unix Commands - Search Man Pages

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

zlapll.f(3)				      LAPACK				      zlapll.f(3)

NAME
       zlapll.f -

SYNOPSIS
   Functions/Subroutines
       subroutine zlapll (N, X, INCX, Y, INCY, SSMIN)
	   ZLAPLL measures the linear dependence of two vectors.

Function/Subroutine Documentation
   subroutine zlapll (integerN, complex*16, dimension( * )X, integerINCX, complex*16, dimension(
       * )Y, integerINCY, double precisionSSMIN)
       ZLAPLL measures the linear dependence of two vectors.

       Purpose:

	    Given two column vectors X and Y, let

				 A = ( X Y ).

	    The subroutine first computes the QR factorization of A = Q*R,
	    and then computes the SVD of the 2-by-2 upper triangular matrix R.
	    The smaller singular value of R is returned in SSMIN, which is used
	    as the measurement of the linear dependency of the vectors X and Y.

       Parameters:
	   N

		     N is INTEGER
		     The length of the vectors X and Y.

	   X

		     X is COMPLEX*16 array, dimension (1+(N-1)*INCX)
		     On entry, X contains the N-vector X.
		     On exit, X is overwritten.

	   INCX

		     INCX is INTEGER
		     The increment between successive elements of X. INCX > 0.

	   Y

		     Y is COMPLEX*16 array, dimension (1+(N-1)*INCY)
		     On entry, Y contains the N-vector Y.
		     On exit, Y is overwritten.

	   INCY

		     INCY is INTEGER
		     The increment between successive elements of Y. INCY > 0.

	   SSMIN

		     SSMIN is DOUBLE PRECISION
		     The smallest singular value of the N-by-2 matrix A = ( X Y ).

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   September 2012

       Definition at line 101 of file zlapll.f.

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

Version 3.4.2				 Tue Sep 25 2012			      zlapll.f(3)


All times are GMT -4. The time now is 01:23 AM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
UNIX.COM Login
Username:
Password:  
Show Password