dlargv.f man page

dlargv.f —

Synopsis

Functions/Subroutines

subroutine dlargv (N, X, INCX, Y, INCY, C, INCC)
DLARGV generates a vector of plane rotations with real cosines and real sines.

Function/Subroutine Documentation

subroutine dlargv (integerN, double precision, dimension( * )X, integerINCX, double precision, dimension( * )Y, integerINCY, double precision, dimension( * )C, integerINCC)

DLARGV generates a vector of plane rotations with real cosines and real sines.

Purpose:

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

   (  c(i)  s(i) ) ( x(i) ) = ( a(i) )
   ( -s(i)  c(i) ) ( y(i) ) = (   0  )

Parameters:

N

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

X

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

INCX

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

Y

Y is DOUBLE PRECISION 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:

September 2012

Definition at line 105 of file dlargv.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

dlargv(3) is an alias of dlargv.f(3).

Sat Nov 16 2013 Version 3.4.2 LAPACK