debian man page for zlargv

zlargv.f(3)							      LAPACK							       zlargv.f(3)

NAME
       zlargv.f -

SYNOPSIS
   Functions/Subroutines
       subroutine zlargv (N, X, INCX, Y, INCY, C, INCC)
	   ZLARGV

Function/Subroutine Documentation
   subroutine zlargv (integerN, complex*16, dimension( * )X, integerINCX, complex*16, dimension( * )Y, integerINCY, double precision, dimension( *
       )C, integerINCC)
       ZLARGV

       Purpose:

	    ZLARGV generates a vector of complex plane rotations with real
	    cosines, determined by elements of the complex vectors x and y.
	    For i = 1,2,...,n

	       (	c(i)   s(i) ) ( x(i) ) = ( r(i) )
	       ( -conjg(s(i))  c(i) ) ( y(i) ) = (   0	)

	       where c(i)**2 + ABS(s(i))**2 = 1

	    The following conventions are used (these are the same as in ZLARTG,
	    but differ from the BLAS1 routine ZROTG):
	       If y(i)=0, then c(i)=1 and s(i)=0.
	       If x(i)=0, then c(i)=0 and s(i) is chosen so that r(i) is real.

       Parameters:
	   N

		     N is INTEGER
		     The number of plane rotations to be generated.

	   X

		     X is COMPLEX*16 array, dimension (1+(N-1)*INCX)
		     On entry, the vector x.
		     On exit, x(i) is overwritten by r(i), for i = 1,...,n.

	   INCX

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

	   Y

		     Y is COMPLEX*16 array, dimension (1+(N-1)*INCY)
		     On entry, the vector y.
		     On exit, the sines of the plane rotations.

	   INCY

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

	   C

		     C is DOUBLE PRECISION array, dimension (1+(N-1)*INCC)
		     The cosines of the plane rotations.

	   INCC

		     INCC is INTEGER
		     The increment between elements of C. INCC > 0.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Further Details:

	     6-6-96 - Modified with a new algorithm by W. Kahan and J. Demmel

	     This version has a few statements commented out for thread safety
	     (machine parameters are computed on each entry). 10 feb 03, SJH.

       Definition at line 123 of file zlargv.f.

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

Version 3.4.1							  Sun May 26 2013						       zlargv.f(3)