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/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/slar2v.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/slar2v.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/slar2v.f

SYNOPSIS

Functions/Subroutines


subroutine SLAR2V (n, x, y, z, incx, c, s, incc)
SLAR2V applies a vector of plane rotations with real cosines and real sines from both sides to a sequence of 2-by-2 symmetric/Hermitian matrices.

Function/Subroutine Documentation

subroutine SLAR2V (integer n, real, dimension( * ) x, real, dimension( * ) y, real, dimension( * ) z, integer incx, real, dimension( * ) c, real, dimension( * ) s, integer incc)

SLAR2V applies a vector of plane rotations with real cosines and real sines from both sides to a sequence of 2-by-2 symmetric/Hermitian matrices.

Purpose:

!>
!> SLAR2V applies a vector of real plane rotations from both sides to
!> a sequence of 2-by-2 real symmetric matrices, defined by the elements
!> of the vectors x, y and z. For i = 1,2,...,n
!>
!>    ( x(i)  z(i) ) := (  c(i)  s(i) ) ( x(i)  z(i) ) ( c(i) -s(i) )
!>    ( z(i)  y(i) )    ( -s(i)  c(i) ) ( z(i)  y(i) ) ( s(i)  c(i) )
!>

Parameters

N 

!>          N is INTEGER
!>          The number of plane rotations to be applied.
!>

X

!>          X is REAL array,
!>                         dimension (1+(N-1)*INCX)
!>          The vector x.
!>

Y

!>          Y is REAL array,
!>                         dimension (1+(N-1)*INCX)
!>          The vector y.
!>

Z

!>          Z is REAL array,
!>                         dimension (1+(N-1)*INCX)
!>          The vector z.
!>

INCX

!>          INCX is INTEGER
!>          The increment between elements of X, Y and Z. INCX > 0.
!>

C

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

S

!>          S is REAL array, dimension (1+(N-1)*INCC)
!>          The sines of the plane rotations.
!>

INCC

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

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 109 of file slar2v.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Version 3.12.0 LAPACK